Minerals M

Macaulayite (xx)

Bennachie, Inverurie, Aberdeenshire, Scotland / UK / TYP; orange-brown 2 mm powdery aggregate of 2 µm crystals;
Capsel 48,00

Macdonaldite xls

Big Creek, Pine Flat Lake, Trimmer, Fresno Co., California / USA / TYP; the rare Barium-Calcium-Silicate forms white radial acicular crystal aggregates to 5 mm, very rich on fracture zones in pale-brownish Witherite Matrix; KS 28,00; NS 38,00

Macdonaldite xx

Big Creek, Pine Flat Lake, Trimmer, Fresno Co., California / USA / TYP; this rare Barium-Calcium-Silicate forms white radial acicular aggregates to 3 mm, in cavities and fracture zones in Sanbornite-Quartz matrix. Good specimens from a new find in February 2014; KS 38,00; NS 65,00

Macfallite (xx)

Mt. Vassiliko, Katakalaii, Andros Island, Aegean Sea / Greece; glassy, red-brownish long-prismatic crystals of 1 mm, with glassy red Manganoan Epidote and Piemontite (always both phases are present) intergrown to layer-like structures 1 cm thick in metamorphic Quartzite; NS 38,00; HS 65,00

Mackayite xx

San Miguel Mine, Moctezuma, Sonora / Mexico; pale greenish- brown diamond-lustre crystals and crystal-aggregates to 1 mm on a Barite-Calcite matrix, very rich with inclusions of native Tellurium; MM 28,00; KS 48,00

Maghemite xx

Montenero Quarry, Onano, Viterbo Prov., Latium / Italy; orange-brown acicular balls of 0,8 mm together with tabular Phlogopite crystals and needly Magnesiohastingsite on vugs in Basalt matrix; KS 28,00; NS 48,00

Magnesio-arfvedsonite xls

Alinci Pegmatite, Alinci, Prilep, Macedonia; deep dark blue needle-like crystals of 5 mm, very richly inter grown in Barite crystals of 4 cm. Unique combination of an Amphibole and Barite, I never have seen anything similar before; NS 38,00

Magnesioastrophyllit xx

Kirovskii Apatite Mine, Mt. Kukisvumchorr, Khibiny Massif, Kola Peninsula / Rußland; Messing-farbige hochglänzende um 3 cm große blätterige Kristallaggregate, sehr reich in Natrolit Albit Matrix. Sehr schöne Stufen aus einem Neufund; KS 28,00; NS 48,00

Magnesioaubertite xls

Mejillones Peninsula, Mejillones, Antofagasta, II Region / Chile; this Cu-Mg-Al-Sulfate occurs as glassy pale blue crystals of 3 mm on cavities on a matrix of massive orange brownish glassy acicular Botryogen, nice specimen; KS 28,00

Magnesiocarpholite xx

Assineti Bay, Seneti, Andros Island, Aegean Sea / Greece; glassy, pale yellow crystals of 5 mm in grayish Calcite; KS 28,00

Magnesiochromite xx

Nikka Vord, Baltasound-Haroldswick area, Unst, Shetland Islands, Scotland / UK; black bi-pyramidal crystals of 4 mm very rich in Antigorite matrix, newly examined old specimens; KS 28,00; NS 38,00

Magnesio-ferri-fluoro-hornblende (xx)

Eklogit Quarry, Lieser Valley, Spittal a. d. Drau, Carinthia / Austria; greenish grey acicular blocky crystal aggregates of 1,5 cm in Calcite Feldspar matrix; KS 75,00

Magnesioferrite xls

Langban Gruvan, Langban, Filipstad, Värmland / Sweden; well terminated grey metallic crystals of 3 mm, very rich on Calcite matrix. Idiomorphic crystals of Magnesioferrite are rare; KS 28,00; NS 38,00

Magnesiofoitite xx

Amarantos Pike, Ateni, Andros Island, Aegean Sea / Greece; acicular gray crystals of 2 cm in Quartz. Very large crystals of this rare member of the Tourmaline group; KS 38,00

Magnesiofoitite xx

Amarantos Pike, Ateni, Andros Island, Aegean Sea / Greece; gray acicular crystals of 2 cm in Quartz. Very large crystals of this rare member of the Tourmaline group; KS 28,00; NS 48,00

Magnesiohastingsite X

Studsdalen, Kragerø, Telemark / Norway; highly lustrous greenish-black long-prismatic doubly terminated single crystals
of 3.5 cm (KS), 5 cm (NS) up to 7 cm (HS). These are the finest known Magnesiohastingsite crystals. Collected around 1920;
KS 28,00; NS 48,00; HS 95,00

Magnesiohögbomite-2N2S xx

Mt. Ruoutevare, 13 km north of Kvikkjokk, Jokkmokk, Lapland / Northern Sweden / TYP; very rich specimens from a new find in July 2013. Dark brownish massive metallic crystal aggregates of inter-grown hexagonal crystals, together with Ilmenite and black Magnetite. This locality, the only known occurence for this rare Mg-Al-Ti-Oxide, is very difficult to approach other than by helicopter; KS 38,00; NS 75,00; HS 148,00

Magnesiohornblende X

Dolanky, Teplice, Usti, Bohemia / Czech Republic; tief-dunkelbraune hochglänzende prismatische um 2 cm (KS) bis 4 cm (NS) große doppelendige Einzelkristalle. Hervorragende Exemplare des seltenen Amphibols; KS 19,00; NS 38,00

Magnesiohornblende (xx)

Steinbrauch im Borntal, Bad Frankenhausen, Kyffhäuser, Thuringia / Germany; blocky dark green crystals of 1 cm, very rich in tan Anorthite matrix; KS 19,00; NS 28,00

Magnesiokoritnigite xx

Torrecillas Mine, Salar Grande, Iquique, Atacama Desert, I Region / Chile / TYP; this new rare Magnesium-arsenate occurs as bright pinkish radial-acicular crystal aggregates on vugs and fracture zones on brownish matrix; rich and pretty specimens;
KS 125,00

Magnesiopascoite xx

Firefly Mine, La Sal Creek Canyon, La Sal, San Juan Co., Utah / USA; orange crystal aggregates, very rich on Sandstone; MM 48,00; KS 95,00

Magnesiostaurolite xls

Kyanite Creek, Staro Lagovo, Prilep, Pelagonia Massif / Macedonia; glassy brown crystals of 1 cm (KS) up to 2 cm (NS) grown on a 5 cm black Kyanite crystal. Magnesiostaurolite in such large crystals is very rare. Only few specimens available;
KS 75,00; NS 125,00

Magnesiotaaffeite-2N2S

Chaung-Gyi, Mogok, Sagaing District, Mandalay / Myanmar; colorless single crystals of 5 mm (MM) up to 1 cm (KS). Outstanding good specimens of this very rare Mg-Al-Be-oxide; MM 75,00; KS 185,00

Magnesiotaaffeite-6N’3S (xx)

Stubenberg Quarry, Stubenberg am See, Weiz, Styria / Austria; colorless inclusion of 100 µm together with black Ilmenite Baddeleyite and Zirconolite in dolomitic marble. Polished sections with BSE pictures; KS 125,00

Magnesiotaramit xx

Kibaya, Handeni District, Korogwe, Tanga Region / Tanzania; dunkelgrüne prismatische um 5 mm große Kristalle, neben hellgrünem um 3 mm großen blätterigen Preiswerkit, und roten um 1 mm großen Rutil Kristallen, aufgewachsen auf um
2 cm x 2 cm (KS) bis 4 cm x 4 cm (NS) großen hellrosagrauen Korund Kristallen; KS 38,00; NS 65,00

Magnesite xx

Magnesite Quarry, Arzbach, Neuberg an der Mürz, Styria / Austria; colorless-white bright luster crystals of 1,5 cm, very rich on massive Magnesite matrix. Old specimen with old labels, collect around 1900; HS 75,00

Magnetite xx

Norr Tjalmejaure Lake, Mattisudden, Jokkmokk, Lapland / Northern Sweden; black semi metallic bi-pyramidal crystals of 2 cm. The surface of the crystals shows a unique stair-like form; KS 19,00; NS 28,00

Magnetoplumbite xx

Amerika Working, Langban, Värmland / Sweden / TYP; black-metallic 3 mm crystals very rich in Phlogopite-Calcite matrix; MM 19,00; KS 28,00

Magnetoplumbite xx

Amerika Working, Langban, Värmland / Sweden / TYP; hexagonal black metallic crystals to 5 mm together with Richterite in pale pinkish Hedyphane matrix. Very good specimens; KS 38,00; NS 75,00

Magnolite xx

Bessi - G- Mine, Snowstorm Peak, La Plata Co., Colorado / USA; greenish to tan silky fine crystal aggregates on Coloradoite and native Gold on vugs on Quartz matrix. Good specimen of this exceptionally rare Mercury Tellurate; KS 125,00

Malachite xx

Kamoya South II Mine, Kamoya, Kambowe, Katanga / Congo; "Stalactites of Malachite": green radial-acicular Malachite crystals intergrown to stalactitic aggregates of 5 cm x 1 cm. Looks strange! ; NS 19,00

Malayaite xx

Red-a-Ven Mine, Okehampton, Northern Dartmoor, Devon, England / UK; pale yellow to nearly colorless crystal aggregates to 4 mm, very rich in Garnet-Hedenbergite-Wollastonite matrix. Very strong pale yellow fluorescent in UV light (SW); KS 19,00; NS 28,00

Malayaite xx

Red-a-Ven Mine, Okehampton, Northern Dartmoor, Devon, England / UK; pale yellow to nearly colorless crystal aggregates to 4 mm, very rich in Garnet-Hedenbergite-Wollastonite matrix. Very strong pale yellow fluorescent in UV light (SW); KS 19,00; NS 28,00

Mammothite xx

Rawley Mine, Theba, Painted Rock Mts., Maricopa Co., Arizona / USA; highly lustrous greenish-blue crystals to 0,5 mm and crystal aggregates to 2 mm, together with sky-blue Pseudoboleite, dull blue Chrysocolla and green Malachite; KS 85,00

Manazite-(Ce) xls

Mina Siglo Vente, Llallagua, Bustillo Prov., Potosi Dept. / Bolivien; pale rosa to greenish well terminated crystals of 5 mm, together with brownish Cassiterite xls some isolates greenish brown transparent Xenotim-(Y) crystals and Quartz crystals, very rich on big Quartz matrix. Very nice specimens; NS 48,00; HS 125,00

Mandarinoite xx

Mina El Dragón, Antonio Quijarro Prov., Potosí Dept. / Bolivia; green to olive 1 mm crystals as waxy aggregates in vugs and oxidation crusts on Krutaite-Penroseite matrix. Good specimens of this rare Iron Selenite; MM 28,00; KS 48,00

Manganese-Richterite xx

Langban Gruvan, Langban, Värmland / Sweden / TYP; brownish well terminated 5 mm idiomorphic crystals, very rich with Manganophyllite crystals on Garnet-Hausmannite matrix; KS 38,00

Manganhumite xls

Agnew Meadow Mine, Olaine Lake, Madera Co., California / USA; colorless to very pale brownish bright luster glassy crystals of 0,5 mm. Very rich with Rhodonite on Calcite; MM 38,00; KS 65,00

Manganiceladonite xls
IMA 2015-052

Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Prov., Liguria / Italy / TYP; brown micro crystalline crystal aggregates of 1 mm on thin fracture zones; MM 95,00

Mangani-dellaventuraite (xls)

Kajlidongri Mine, Jhabua District, Madhya Pradesh / India / TYP; this extremly rare Silicate occurs as violet anhedral grains
of 0,5 mm, commonly intergrown with red-violet Aegirine-Augite in a Quartz-Braunite-Albite-matrix; MM 95,00

Manganite xx

Ilfeld, Harz Mts., Thuringia / Germany / TYP; "Manganite crystals pseudomorph after Calcite crystals" . Very nice crystals clusters of greyish black semi-metallic long elongated skalenoedric crystals up to 1,5 cm; KS 28,00; NS 48,00

Manganlotharmeyerite xls

Starlera Mangan Mine, Starlera, Val Ferrera, Graubünden / Switzerland / TYP; the rare Ca-Mn-Arsenate forms orange brownish small crystal aggregates on fracture zones on Braunite-Quartz matrix; MM 38,00

Manganoan-Epidote xx

Mt. Skoumbi, Andros Island, Aegean Sea / Greece; "Pseudomorphs from Manganese-rich Epidote after Braunite Crystals" dark violet "pyramidal crystals" up to 2 cm with some Quartz crystals a relictic Braunite. Outstandingly good specimens of this till now unknown Pseudomorph; KS 48,00; NS 125,00; HS 350,00

Manganoeudialyte xx

Poços de Caldas, Poços de Caldas Plateau, Minas Gerais / Brazil / TYP; transparent violet 3 mm crystals, very rich in a Khibinite matrix. Outstanding specimens from a new pegmatite field. True Manganoeudialyte is so far known only from Pocos de Caldas: all other instances are only Manganese-bearing Eudialyte; KS 38,00; NS 75,00; HS 125,00

Manganoneptunit xx

Mt. Kaskasnyunchorr, Khibiny Massif, Kola Peninsula / Rußland; "Pseudomorphosen nach Lovozerit-artigem Mineral" um 1 cm große rotbraune Aggregate auf Siderit-Natrolit Matrix; NS 65,00

Mannardite xx

Rough Claim, Kechika River, Sifton Pass, Liard, British Columbia / Canada / TYP; highly lustrous dark brownish long prismatic crystals of 1 mm in Quartz-Feldspar matrix; collected in 1978; MM 28,00; KS 48,00

Mansfieldite xls

Hobart Butte, Black Butte District, Lane Co, Oregon / USA / TYP; bright pale yellowish-grey waxy radial acicular botryoidal crystal aggregates, very rich on large vugs in massive Mansfieldite-Dickite matrix; KS 28,00; NS 48,00

Mansfieldite xx

Djebel Debagh, Guelma, Qacentina, Atlas Mts. / Algeria; colorless to white crystals of 1 mm in vugs in massive pale green aggregates of pure Mansfieldite. Very good specimens of this rare Aluminum Arsenate; KS 28,00; NS 38,00

Marcasite xx

Limestone Quarry - Wunstorf-Kolenfeld, Hannover, Lower Saxony / Germany; yellow metallic crystals of 5 mm, inter grown to columnar tree-cone like crystal aggregates of 3 cm (KS) to 4 cm (NS). It looks nice; KS 12,00; NS 19,00

Margarit (xx)

Belts Bridge, South bank of South Yadkin River, Iredell Co., North Carolina / USA; "Pseudomorphose von Margarit nach Korund" ca. 8 cm x 5 cm x 4 cm großer umgewandelter Kristall. Mit Einschlüssen von Ilmenit und Dravit; HS 75,00

Marialite xx

Sar-e Sang, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Prov. / Afghanistan; pale violet gemmy prismatic well terminated crystals to 1,5 cm on bright white Anhydrite matrix. Very nice specimens; KS 19,00; NS 28,00

Maricopaite xls

Moon Anchor Mine, Big Horn Mts., Maricopa Co., Arizona / USA / TYP; white long prismatic crystals of 2 mm, with some orange Mimetite on fracture zones in Gneiss matrix. Quite rich specimens of this rare only from on location know Lead-Calcium-Silicate; KS 19,00

Mariinskite xls

Malyshevskoe Deposit, Izumrudnye Kopi, Malyshevo, Ural Mts. / Russia/ TYP; this Beryllium-Chromium-oxide is the very rare Chromium analogue of Chrysoberyl. It forms dark greenish crystal aggregates of 0,3 mm with pale green Phlogopite and brownish Chromite; MM 65,00

Markcooperite xx
IMA 2009-045

Aga Mine, Otto Mountain, Baker, San Bernardino Co., California / USA / TYP; tiny, glassy, highly lustrous, orange to pale brownish crystals on Quartz. Only a few specimens of this new Pb-U-Tellurate are available; MM 125,00

Marrite xls

Lengenbach Quarry, Imfeld, Binn Valley, Wallis / Switzerland; grey metallic striated crystals of 2 mm on Dolomite matrix; KS 38,00

Marshit xx

Poteryaevskoe Mine, Rubtsovskoe, Rudnyi Altai, West-Sibirien / Rußland; weiße (im UV- Licht intensiv orange-rote) um 0,5 mm große Kristalle, sehr reich auf um 1 cm großen gediegen Kupfer Kristallen und Cuprit; KS 28,00; NS 85,00

Maskelynite

Tenoumer Impact Crater, 22°55´N 10°24´W, 300 km östlich von Zouerate, El Khatt / Mauritania; very rich component in white to tan particular glassed Feldspar aggregates of 3 mm in glassy shocked greenish grey granitic Impactite; KS 48,00

Matalodevite xx

Riviéral, Lodève, Hérault, Languedoc-Roussillon / France / TYP; pale yellow transparent tabular crystals of 0,5 mm on matrix;
MM 48,00

Mathiasite (xx)
Lindsleyite (xx)

Bultfontein Mine, Bultfontein, Kimberley, Northern Cape Prov. / South Africa / TYP; highly lustrous black- metallic aggregate of 3 mm as intergrowths with Lindsleyite. This is an extremely rare mineral from the upper mantle zone; Capsules 48,00

Mawsonite (xls)

Hingston Down Quarry, Gunnislake, Calstock, Cornwall, England / UK; the rare Cu-Fe-Sn-Sulfide occurs in brownish metallic aggregates of 2 mm, very rich together with Stannoidite, Bornite und Tennantite un Quartz matrix. Old specimens collect around 1996; KS 65,00

Mawsonite (xx)

Tada Mine, Inagawa, Kawabe, Hyogo, Honshu Island / Japan; bronze-metallic aggregates of 3 mm together with Chalcopyrite in a Quartz matrix; MM 48,00

Mcallisterite xx

Eagle Borax Spring, Death Valley, Inyo Co., California / USA; white aggregates of colorless tabular crystals, intergrown with Gypsum and Halite. These are the best specimens of this extremely rare Magnesium-Borate; KS 65,00; NS 125,00

Mcconnellite xx

Merume River, Kamakusa, Mazaruni District / Guyana / TYP; black tabular crystals of 0,5 mm inter grown with tabular Grimaldiite as rounded radial aggregates of 4 mm; found in a alluvial deposit; Capsule 48,00

Mcgillite (xx)

Sullivan Mine, Kimberley, Fort Steele, British Columbia / Canada / TYP; pale pinkish crystals of 3 mm in brownish Sphalerite Matrix; MM 38,00

Medaite xls

Molinello Mine, Val Graveglia, Genova Prov., Liguria / Italy / TYP; highly lustrous prismatic red 1 mm crystals, very rich on vugs of several centimeters in Quartz-Hausmannite matrix; KS 28,00; NS 48,00

Medaite xx

Molinello Mine, Val Graveglia, Ne, Genova Prov., Liguria / Italy / TYP; highly lustrous red prismatic 0,5 mm crystals, very rich on vugs in Quartz-Hausmannite matrix; KS 28,00

Meierite (xls)
IMA2014-039

Gun Claim, 4 km s/e of Wilson Lake, 16 km s/e of Mt. Itsi, 155 km n/e of Ross River, Yukon Territory / Canada / TYP; the Barium Zeolite was discover by me in August 2012 during our expedition to the Gun Claim. Meierite forms pale blue 1 mm crystal aggregates very rich in a matrix of Quartz, Hedenbergite, Gillespite, Taramellite, Edingtonite and other. The mineral is named in honor Prof. Walter Meier, a expert for Zeolites; KS 95,00; NS 148,00

Meionite xls

Whitcomb quarry, Bolton, Worcester Co., Massachusetts / USA; pink-colored prismatic crystals of 3 cm, inter grown to massive crystal aggregates of pure Meionite. Nice old specimens; the quarry was closed in the 1860s; NS 38,00; HS 65,00

Meionite xx

Whitcomb quarry, Bolton, Worcester Co., Massachusetts / USA; pink-colored prismatic crystals of 1,5 cm, inter grown to massive crystal aggregates of pure Meionite. Nice old specimens; the quarry was closed in the 1860s; KS 28,00; NS 38,00

Meixnerit xx

Zeilberg Quarry, Maroldsweisach, Franken, Bayern / Deutschland; hellgelbe um 0,3 mm große Kristalle vereinzelt auf weißen Gonnardit Kristallen auf Basalt Matrix; MM 75,00

Mejillonesite xx

Cerro Mejillones, Mejillones Peninsula, Mejillones, II Region / Chile / TYP; nice crystal cluster of 5 mm of colorless well terminated inter grown prismatic crystals of 2 mm. Grown on fractures in Granite matrix. Outstanding good specimens from a new discover spot, only few hundred meters away of the actually type location; KS 48,00; NS 95,00

Mejillonesite xx IMA 2010-068

Cerro Mejillones, Mejillones Peninsula, Mejillones, II Region / Chile / TYP; Colorless 4 mm aggregate of intergrown prismatic crystals on a beige matrix of Clinoptilolite-Na + Clinoptilolite-Ca and Opal. Mejillonesite was discovered by myself in December 2008, and was later named after the type-locality; MM 65,00; KS 95,00

Melanite xx

Perovskite Hill, Santa Rita Peak, Diablo Range, San Benito Co., California / USA; very highly lustrous well terminated black crystals to 5 mm, very rich on large vugs and fracture zones in a greenish grey Chlorite-Perovskite rock matrix (very unusual type of rock), pretty specimens collected approx. 20 years ago; KS 19,00; NS 28,00; HS 65,00

Melanotekit xx

Macy Mine, Hillsboro District, Sierra Co., New Mexico / USA; dunkel-grünlich-braune hochglänzende um 1 mm große Kristalle auf Kluftzonen in Quarz Limonite Matrix; KS 38,00; NS 65,00

Melanotekite (xx)

Norrbotten Working, Langban, Värmland / Sweden / TYP; highly lustrous dark brownish sub-metallic massive aggregates of pure Melanotekite, some together with some brownish tabular Phlogopite. Old specimens collected around 1897;
KS 38,00; NS 75,00

Melanterite xx

Paitzdorf, Ronneburg, Gera, Thuringia / Germany; pale greenish-yellow 3 mm crystals, intergrown to massive aggregates of pure Melanterite. Chemical analysis shows this material to be free of Magnesium, and therefore stable in air; KS 19,00; NS 38,00

Meliphanite xx

Stokkoya Island, Langesundfjord, Vestfold / Norway; gemmy yellow tabular crystals up to 2 mm, very rich as blocky aggregates in Syenite matrix. Very nice specimens; KS 38,00; NS 75,00

Mellite xls

Csordakúti Mine, Bicske-Csordakút, Bicske-Zsámbéki Basin, Fejér Co. / Hungary; nice 2,5 cm crystal clusters of intergrown pale brownish to colorless bi-pyramidal crystals to 5 mm. Quite nice specimens; KS 19,00

Melonjosephite (xx)
Ferroalluaudite

Angarf-South Pegmatite, Tazenakht, Ouarzazate Prov. / Marokko / TYP; black high lustrous aggregates of 2 mm in dark green more dull massive Ferroalluaudite; KS 38,00

Melonjosephite xls

Angarf-South Pegmatite, Tazenakht, Ouarzazate Prov., Draa-Tafilalet Region / Morocco / TYP; the rare Ca-Fe-Phosphate forms black high lustrous radial acicular aggregates of 5 mm in dark green massive Ferroalluaudite; MM 28,00; KS 38,00

Mendipite (xx)

Merehead Quarry, Cranmore, Somerset, England / UK; white to pale-pinkish acicular aggregates of 2 cm on a dark matrix; KS 28,00

Mendipite (xx)

Merehead Quarry, Cranmore, Somerset, England / UK; the Lead-oxy-chloride forms colorless to pinkish-white crystals aggregates of inter grown 1 cm long Mendipite crystals; MM 19,00; KS 28,00

Mendipite xx

Langban Gruvan, Langban, Värmland / Sweden; thin silky white crystal aggregates on a fracture zone in Manganophyllite-Calcite matrix; MM 38,00

Meneghinite xx

Lengefeld, Erzgebirge, Saxony / Germany; grey- metallic acicular crystal aggregates of 1 cm, very rich in a brownish Sphalerite-Calcite matrix. Old samples, newly examined. Collected around 1940. Meneghinite is almost unknown from Erzgebirge. Only a few specimens available; KS 48,00; NS 125,00

Menilite

Ménilmontant, Mont Matre, Paris, Ile-de-France / France / TYP; tan to white botryoidale aggregates of pure Menilite; KS 19,00

Mercurian Tetrahedrite (xx)

Rudnany Mine, Spisská Nová Ves Co., Kosice / Slovakia; massive dark grey-metallic specimen of a pure Mercurian Tetrahedrite (approx. 18 Wt.% of Hg). Old specimens collected around 1900; KS 28,00; NS 48,00

Merelaniite xls

Merelani Hills, Lelatema Mts., Simanjiro District, Manyara Region / Tanzania / TYP; the new extremely rare Mo-Pb-V-Sb-Sulfide forms isolated grey metallic rounded cylindrical crystals of 2 mm on Alabandite crystals. Merelaniite is one of most unique newly descript minerals. I have only a few specimens available; KS 350,00

Merrihueite xx
Chayesite xx

Basalt Quarry, Mt. Pauliberg, Kobersdorf, Oberpullendorf, Burgenland / Austria; red-brownish zonar-growth crystals of 1 mm, with a dark blue core zone of Chayesite, covered by a red-brownish zone of Merrihueite, nice as isolated crystals on vugs in a Basalt matrix; MM 38,00

Messelite xx

Messel Mine, Messel, Darmstadt, Hesse / Germany / TYP; colorless prismatic crystals of 2 mm inter grown radial crystals aggregates of 4 mm, very rich in brownish bituminous shale matrix. Old historic specimens from the German type location of the rare Ca-Fe-Phosphate; KS 28,00; NS 48,00

Metacinnabarite xx

Great Western Mine, Middletown, Mayacmas Mts, Lake Co., California / USA; black metallic crystals and aggregates of 2 mm, together with red Cinnabar aggregates on Quartz matrix. Old specimens from the early 1940s; KS 28,00; NS 48,00

Metaheinrichite xx

White King Mine, Lakeview, Lake Co., Oregon / USA / TYP; pale yellow tabular crystals of 0,5 mm, very rich on dark Jasplite matrix; KS 28,00; NS 48,00

Metamunirite xls

Yellow Cat, Thompson District, Grand Co., Utah / USA; colorless needle crystals of 3 mm, very rich inter grown to radial accicular crystal aggregates, very rich on Sandstone matrix. This are the finest specimens of the rare Sodium-Vanadat i seen ever, very nice specimens; KS 48,00; NS 75,00

Metanatroautunit xx

Johanngeorgenstadt, Erzgebirge, Sachsen / Deutschland; gelb-oliv-grüne tafelige um 1 mm große Kristalle dicht verwachsen mit grünen tafeligen Torbernit Kristallen auf Gneis Matrix. Es ist der erste Fund von Metanatroautunit in Europa.; MM 38,00; KS 75,00

Metatorbernit xx

Schneeberg, Erzgebirge, Sachsen / Deutschland / TYP; hellgrüne tafelige um 2 mm große Kristalle auf Quarz; KS 28,00

Metavanuralite xx

Firefly Mine, La Sal Creek Canyon, La Sal, San Juan Co., Utah / USA; greenish-yellow microcrystalline crystal aggregates, very rich on Sandstone matrix. Excellent specimens of this very rare Aluminum Uranyl Vanadate; KS 65,00; NS 125,00

Metavariscite xls

Edison Bird Claim, Utahlite Hill, Lucin, Box Elder Co., Utah / USA / TYP; nice bright crystal clusters of 1,5 cm of intergrown gemmy pale green Metavariscite crystals, on vugs in white Chalcedony matrix; KS 28,00; NS 38,00

Metavoltin xx

Alum Grotto, Porto Levante, Vulcano Island, Eolie Islands, Sizilien / Italien; gelbe hoch glänzende tafelige Kristalle, sehr reich auf Kluftzonen in einer Matrix aus weißen fein-faserigen um 1 cm langen Pickeringit Kristalle. Gefunden um 1927; KS 28,00

Meurigite-K xls
Strengite xls

Teskov, Rokycany, Plzen Region, Bohemia / Czech Republic; the rare K-Fe-Phosphate occurs here as white radial acicular crystal aggregates of 2 mm, together with pale violet radial acicular 3 mm large Strengite crystals on matrix, nice specimens; KS 28,00

Meurigite-Na xx

Silver Coin Mine, Valmy, Humboldt Co., Nevada / USA / TYP; yellowish-green spherical crystal aggregates of 2 mm on vugs in Quartz matrix; KS 75,00

Meyerhofferite xls

Mt. Blanco Mine, Black Mts., Death Vallay, Inyo Co., California / USA / TYP; nice crystal cluster of colorless long tabular double terminated crystals of 1,5 cm; KS 28,00

Meyerhofferite xx

Mt. Blanco Mine, Black Mts., Death Vallay, Inyo Co., California / USA / TYP; nice clusters of white prismatic crystals of 2,5 cm with some colorless Inyoite crystals to 5 mm; KS 28,00; NS 38,00

Meymacite (xx)

Kinta Valley, Gujang Mts., Melaka, Malacca Peninsula / Malaysia; lustrous yellow microcrystalline aggregates very rich as an alteration product of fractures in massive Scheelite; MM 38,00

Miargyrit xx

Mina Ensueno, Castrovirreyna Prov., Huancavelica / Peru; rötlich-schwarze hochglänzend metallische um 2 mm große Kristalle auf Quarz-Miargyrit Matrix; MM 28,00; KS 65,00

Miargyrit xx (xx)

Dealul Crucii Adit, Baia Mare, Maramures Co. / Rumänien; rötlich-grau metallische hoch glänzende flache um 1 cm große Kristallaggregate auf Spaltzonen in Quarz Matrix. Alte Proben, Miargyrit von Baia Mare war bisher unbekannt; KS 28,00; NS 75,00

Miargyrite xx

Kelly Mine, Randsburg, Kern Co., California / USA; reddish-grey-metallic crystals to 4 mm, intergrown to massive aggregates with some Calcite. Old-time specimens from a famous Californian location; MM 28,00; KS 65,00

Miargyrite xx

Santa Cecilia Mine, Hiendelaencina, Guadalajara, Castile-La Mancha / Spain; black-metallic crystals of 4 mm in vugs on massive Miargyrite matrix. Only one specimen available; NS 165,00

Miersite xx

Poteryaevskoe Mine, Rubtsovskoe, Rudnyi Altai, Western-Siberian Region / Russia; yellow 1 mm bi-pyramidal crystals as small aggregates, scattered on clusters of highly lustrous dark red 1,5 cm Cuprite crystals. Outstanding specimens; KS 75,00; NS 145,00

Miersite xx

Poteryaevskoe Mine, Rubtsovskoe, Rudnyi Altai, Western-Siberian Region / Russia; yellow 1 mm bi-pyramidal crystals as small aggregates, scattered on clusters of highly lustrous dark red 1,5 cm Cuprite crystals. Outstanding specimens; KS 75,00; NS 145,00

Miguelromeroit xx

Mina Veta Negra, Pampa Larga, Tierra Amarilla, Copiapó, III Region, Atacama Desert / Chile / TYP; violette hochglänzende glasklare um 1 mm große Kristalle auf Kluftzonen; KS 48,00

Mikasait xx

Ikushunbetsu, Mikasa, Sorachi Prov., Hokkaido Island / Japan / TYP; hellgelbe glasige Kristallaggregate sehr reich neben farblosem Salmiak Kristallen auf heller Matrix; MM 38,00; KS 75,00

Millerite xx

Fünf Bücher Mosis Mine, St. Andreasberg, Harz Mts, Lower Saxony / Germany; yellow-metallic acicular crystals of 2 mm, in vugs in a matrix of dark brownish Rammelsbergite and grayish-metallic Gersdorffite crystals; KS 28,00; NS 48,00

Minasragrite xls

Minas Ragra, Cerro de Pasco, Daniel Alcides Carrión Prov., Pasco Dept. / Peru / TYP; bright blue crystal aggregates of 2 mm, very rich on black Patronite; MM 38,00

Minnesotaite

Wolkenburg, Limbach-Oberfrohna, Saxony / Germany; the rare Iron-silicate of the Talc group occurs here as pale greenish waxy massive aggregates of pure Minnesotaite. Old newly examined samples, collect around 1900; MM 28,00; KS 38,00

Minrecordite xx

Tsumcorp Mine, Tsumeb, Otavi Mts., Otjikoto Region / Namibia / TYP; very nice clusters and nearly massive aggregates of highly lustrous intergrown gemmy white crystals to 1 mm together with some greenish Duftite and colorless Cerussite. These are the best Minrecordites ever found. Several EDAX-SEM analyses on polished sections show a zonar growth with a variable but mostly dominant amount of Zinc over Magnesium; MM 65,00; KS 125,00; NS 385,00

Minyulite xx

Utahlite Hills, Lucin, Pilot Range, Box Elder Co., Utah / USA; spherical crystal groups of 1 cm of needle crystals, very nice on Chalcedony matrix. These are the best known of Minyulite specimens. There were discovered about 1975 on an unknown prospect near Lucin. Since that time the specimens have been packed in a box; KS 38,00; NS 65,00

Mirabilite xx

Beienrode, Königslutter am Elm, Helmstedt, Lower Saxony / Germany; colorless transparent gemmy well terminated prismatic crystals of 2,5 cm. Outstanding good specimen, it would be the finest known European Mirabilite. Mounted to be against of dehydration in air sealed dome-boxes; KS 28,00

Mitridatite xx

Angarf-South pegmatite, Tazenakht, Ouarzazate Prov., Souss-Massa-Draa Region / Morocco; brownish radial-acicular aggregates of 2 mm, very rich on fracture zones in Quartz; KS 19,00

Miyahisaite (xx)
IMA2011-043

Shimoharai Mine, Saeki City, Oita Pref., Kyushu Region / Japan / TYP; orange-brownish vein-like aggregates with some Namansilite in grayish Quartzite matrix; MM 148,00

Moctezumite xx

Mina La Bambolla, Moctezuma, Sonora / Mexico / TYP; orange yellow tabular crystals of 1,5 mm on vugs in Quartz matrix; KS 28,00

Moeloite xls

La Plâtrière Quarry, Granges, Sion, Wallis / Switzerland; the very rare Pb-Sb-Sulfide ocours in grey metallic needle crystals of
1 mm, together with native Sulphur on Gypsum; KS 28,00; NS 38,00

Moeloite xx

La Plâtrière Quarry, Granges, Sion, Wallis / Switzerland; grey-metallic needle crystals of 1 mm, together with native Sulfur on Gypsum; KS 28,00

Moganite

Adrar Ouanas, Zag, Assa-Zag Prov., Guelmim-Es- Semara Region / Morocco; gemmy glassy orange-brown pseudomorphic replacements of fossilized eozenic snails of 4 cm (KS) to 6 cm (NS); KS 28,00; NS 48,00

Moganite

Dakhla, Oued ed Dahab Lagouira / West Sahara; orange brown gemmy glassy pseudomorphic complied replacements of 3,5 cm large fossilized eozenic snails, very nice fossilized pseudomorphs; KS 19,00

Möhnite xls

Southern Slope of Punta de Lobos, 90 km south of Iquique, I Region / Chile; this new NH4-Na-sulfate is the Ammonium analog of Aphthitalite. The new mineral forms waxy pale brownish tabular crystals of 1,5 cm, intergrown to massive crystal aggregates of pure Möhnite; KS 48,00; NS 95,00

Molinelloite xls

Molinello Mine, Val Graveglia, Genova Prov., Liguria / Italy / TYP; the new very rare Copper-Vanadate occurs as minute brown metallic bright luster crystal aggregates on fracture zones in Quartz matrix; MM 95,00

Molybdänit xx

Spetals Iron Gruvan, Norberg, Västmanland / Schweden; grau metallische tafelige um 3 mm große Kristalle dicht verwachsen zu massiven Aggregaten mit schwarzem Magnetit, sehr alte Stufen; KS 19,00; NS 28,00

Molybdenite xx

Houtenbeck Pegmatite, Groblersdal, 40 km n/w of Pretoria, Mpumalanga Prov. / South Africa; tabular grey-metallic crystals to 2 cm on Quartz matrix. Old specimens collected around 1920; KS 38,00; NS 65,00

Molybdenite xx

Wolframite Mine, Pechtelsgrün, Lengenfeld, Vogtland, Saxony/ Germany; tabular grey-metallic crystals of 1 cm, very rich with some Pyrite on Quartz. Two historic specimens; KS 38,00; NS 65,00

Molybdenite xx

Tin Mine, Altenberg, Erzgebirge, Saxony / Germany; tabular grey-metallic crystals and crystal aggregates of 1 cm, very rich in Quartz matrix. Old specimens collected in June 1940; KS 38,00; NS 48,00; HS 148,00

Molybdomenite xls

Hal Lake Selenium Occurrence Nr. I, Uranium City, Beaverlodge Lake, Saskatchewan / Canada; the rare Lead-Selenite occurs as silky luster tabular crystals up to 1 mm in thin fracture zones on Rhyolite matrix. Very nice specimens from a new find;
KS 48,00; NS 125,00

Molybdomenite xx

Mina El Dragón, Antonio Quijarro Prov., Potosí Dept. / Bolivia; white to pale yellowish long-tabular needles to 0,5 mm, intergrown to 2 mm crystal-aggregates, together with some Chalcomenite in vugs in Krutaite-Penroseite matrix. Outstanding specimens of this rare Lead Selenite; MM 38,00; KS 65,00

Monazite-(Ce) X

Kyauk Tha Mts., Kyauk-Pyat-Thet, Mogok, Sagaing, Mandalay / Myanmar; brownish highly luster well terminated single crystals
of 5 cm x 3 cm x 2,5 cm; NS 185,00

Monazite-(Ce) xx

Mt. Malosa Massif, Zomba / Malawi; very bright lustrous pale orange-brownish 1,5 cm single crystals and crystal aggregates. Pretty specimens from a new find; MM 28,00; KS 48,00

Monazite-(Ce) xx

Corrego Novo Claim, Sao Joao da Chapada, Diamantina, Jequitinhonha Valley, Minas Gerais / Brazil; brightly lustrous well terminated twinned brown crystal clusters of 1,5 cm, pretty specimens collected around 1990; KS 28,00

Monazite-(Sm)

Svodovyi, Grubependity Lake, Maldynyrd Range, Prepolar Ural, Komi Republic, / Russia; Samarium dominate Monazite exist as zonar inclusions in orange-pinkish Monazite-(Nd) crystals of 1 mm. This crystals are grown isolated in vugs in a Chlorite-Quartz matrix; MM 38,00; KS 48,00

Monetite xls

Cerro Mejillones, Mejillones peninsula, Mejillones, II Region / Chile; the rare Calcium-Phosphate forms very pale brownish massive crystals aggregates of 2 cm (KS) to 4 cm (NS). This are the finest and probably world best Monetite specimens;
KS 38,00; NS 65,00

Monohydrocalcite xls

Spania Dolina, Stare Hory, Banska Bystrica Co., Banska Bystrica Region / Slovakia; pale-olive-green glassy luster, several square centimeter large crystal aggregates, of inter growing 1 cm large acicular crystals. This spectacular new find, bring out the world best specimens of Monohydrocalcite ever find; KS 48,00; NS 125,00

Montgomeryite xls

Edison Bird Claim, Utahlite Hill, Lucin, Box Elder Co., Utah / USA;this rare Ca-Al-Mg-Phosphate forms radial white 5 mm crystal aggregates of elongated prismatic crystals, together with pale grey Crandallite on cavities in white Chalcedony matrix;
KS 28,00; NS 48,00

Montgomeryite xls

Montcada Hill Quarry, Montcada i Reixac, Valles Occidental, Catalonia / Spain; mint-green silky luster long prismatic crystals of 2 mm, very rich on 2 cm large cavities in pale grayish slat rock matrix. Pretty specimens from a new find; KS 38,00

Monticellite xx

Kilchrist, Broadford, Isle of Skye, Scotland / UK; massive aggregates of inter grown glassy 2 mm crystals, together with black Magnetite; KS 19,00; NS 38,00

Montmorillonite

Petrovac, Podgorica / Montenegro; massive grey aggregates of pure Montmorillonite from a very rare location. Collected there in 1961; KS 19,00

Mooreite xls

Sterling Mine, Sterling Hill, Ogdensburg, Sussex Co., New Jersey / USA / TYP; yellowish-grey silky luster mica-like tabular crystals of 2 cm on Calcite-Franklinite matrix; KS 65,00; NS 125,00

Mooreite xx

Sterling Mine, Sterling Hill, Ogdensburg, Sussex Co., New Jersey / USA / TYP; platy to tabular yellowish-brown to colorless crystal of 1 cm intergrown to a 2,5 cm crystal aggregate in Franklinite-Willemite-Zincite matrix. Very good specimen;
NS 148,00

Moorhouseite xx

Bou Azzer Mine, Tazenakht, Quarzazate Prov. / Marocco; pale pinkish crystal aggregates of 1 mm, very rich with some dark violet Spherocobaltite crystals and Alloclasite on Safflorite matrix; KS 38,00

Mopungite xls

Le Cetine di Cotorniano Mine, Chiusdino, Siena Prov., Tuscany / Italy; globular white aggregates with acicular crystals in 1 cm vugs in matrix, with some acicular red Cetineite; KS 28,00

Mordenite xx

Nova Fortaleza Quarry, Pederneiras, Saou Paulo / Brasilien; white fibrous aggregates on very rich on Basalt matrix; KS 12,00

Morimotoite (xx)

Fuka, Bicchu-cho, Takahashi, Okayama Pref., Honshu Island / Japan / TYP; dark brownish 3 mm aggregates of pure Morimotoite. These outstandingly rare Garnets are found only in an outcrop outside the Fuka Mine. The appearance of the mineral is quite different from the schorlomite that is common at the Fuka Mine; Capsel 38,00

Morimotoite xls

Fuka, Bicchu-cho, Takahashi, Okayama Pref., Honshu Island / Japan / TYP; the very rare Calcium-Titanium-Garnet occurs as dark brownish 8 mm large aggregates in Skarn matrix; MM 38,00; KS 65,00

Mottanaite-(Ce) xx

Mt. Cavalluccio, Campagnano di Roma, Sacrofano Caldera, Rome Prov., Latium / Italy / TYP; lustrous bright transparent tabular brownish crystal of 1,5 mm on a cavity in Sanidine matrix; KS 38,00

Mottramite xls

Total Wreck Mine, Cienega Creek,The Narrows, Empire Mts. Pima Co., Arizona / USA; orange brownish bright luster crystals of 1 mm, almost completely covered a matrix of breccia fragment. Nice specimens collect long time ago; KS 14,00; NS 28,00

Mottramite xx

Tsumeb Mine, Tsumeb, Otjikoto Region, Otavi Bergland / Namibia; 1 mm thick olive-green coating on 1 cm Descloizite crystals. The Descloizite crystals themselves are inter grown tree-like crystal aggregates of 3 cm. Nice old specimens collected around 1920; KS 125,00

Mrazekite xx

Lavra de Itamotinga, Juazeiro, Bahia / Brazil; 0.5mm blue crystals on Bismutite. This must be the first occurrence of this rare Cu-Bi-Phosphate in South America; MM 28,00

Mullite (xx)

Durham Ranch, Wright, Reno Junction, Campbell Co., Wyoming / USA; massive pale yellowish-brownish specimens of pure microcrystalline Mullite. This material is probably the richest Mullite ever found; KS 28,00; NS 48,00

Munakataite xls

Hal Lake Selenium Occurrence Nr. II, Uranium City, Beaverlodge Lake, Saskatchewan / Canada; the very rare Copper-Lead-Selenite forms blue botroydalic crystals aggregates up to 5 mm on fracture zones in Rhyolite matrix. Nice specimens from a new find; MM 48,00; KS 75,00

Murashkoite (xls)

Transjordan Plateau, Suwaqa Al Gharbiya, 70 km s/e of Amman / Jordan; this extremely rare Iron Phosphide (FeP) forms dark brownish metallic crystal aggregates of 1 mm in Limestone matrix; KS 125,00

Murmanite xls

IluaBay, Nunasarnaq, Tunulliarfik Fjord, Ilímaussaq, Narsaq, Kujalleq/Greenland; lustrous pale pinkish long prismatic crystals of
1 cm on Aegirine matrix; KS 19,00