Minerals
Gunnar Färber
Minerals
Gunnar Färber
| Rabbittite xls | Yellow Cat, Thompson District, Grand Co., Utah / USA; this very rare Mg-Ca-Uranyl-Carbonate forms lustrous pale green long-prismatic crystals to 0,5 mm on fracture zones on pale grey Sandstone matrix; KS 38,00; NS 95,00 |
| Radtkeite (xx) | McDermitt Mine, McDemitt, Humboldt Co., Nevada / USA / TYP; orange-yellow 1 mm crystal aggregates of minute crystals, with some red Corderoite; Capsule 65,00 |
| Radtkeite xls | Cordero Mine, McDermitt, Humboldt Co., Nevada / USA / TYP; the extremly rare Mercury mineral forms orange crystal aggregates of 5 mm, particulat togther with Kleinite crystals on vugs in Jasplite matrix; MM 48,00; KS 95,00 |
| Raguinite xx | Crven Dol Mine, Allchar, Majdan, Kavadarci, Roszdan / Macedonia / TYP; longprismatic bronze-metallic to dark brown-metallic acicular crystals of 1,5 mm, very rich on matrix together with Realgar. The Raguinite crystals are always a pseudomorph from Raguinite + Pyrite and probably also Picotpaulite after an unknown mineral; MM 28,00; KS 48,00; NS 148,00 |
| Rakovanite xls | Vanadium Queen Mine, La Sal Creek Canyon, Paradox Valley, San Juan Co., Utah / USA; Rakovanite form orange-yellow crystal aggregates of 2 mm, beside of rich crystal aggregates orange-brown Magnesiopascoite crystals. Very rich specimens; |
| Rambergite xx | Garpenberg Norra Mine, Garpenberg, Hedemora, Dalarna / Sweden / TYP; 1 mm brown crystals on vugs in Anthophyllite matrix; |
| Rancieite xx | 2,5 km south of Mt. Grant, Evelyn Creek, South Canal Road, 75 km north of Johnsons Crossing on Teslin River, Yukon Territory / Canada; grey-metallic crystals of 1 mm, very rich with pale rose Rhodochrosite crystals of 3 mm on vugs in pale pinkish Rhodonite matrix. Very nice specimens from a really remote location; NS 28,00; HS 48,00 |
| Rancieite xx | Hátsó Tarnóca Quarry, Kisnána, Mátra Mts., Heves Co. / Hungary; tabular grey-metallic crystals of 1 mm, very rich with Siderite crystals on Andesine matrix. Rancieite in idiomorphic crystals is quite uncommon; KS 28,00; NS 38,00 |
| Rankamaite xx | Urubu Mine, Corrego de Aqueana, Aracuai, Minas Gerais / Brazil; silky fibrous white aggregates of 2 cm, with dark brownish longprismatic Thoreaulite crystals to 1 cm, together with pinkish Elbaite in Albite-Quartz matrix. These are the finest known specimens of this rare Sodium-Tantalum-Oxide; KS 48,00; NS 148,00; NS 148,00 - 320,00 |
| Raspite xls | Proprietary Mine, Broken Hill, Yancowinna Co., New South Wales / Australia / TYP; this Lead-tungstate occurs as colorless to pale brownish prismatic crystals of 2 mm on brownish matrix; MM 38,00; KS 65,00 |
| Rastsvetaevite xx | Mt. Rasvumchorr, Khibiny Massif, Kola Peninsula, Rußland / TYP; transparent red crystal aggregates of 1 cm, with some dark green Aegirine and Feldspar; KS 48,00; NS 85,00 |
| Rathite xls | Lengenbach Quarry, Imfeld, Binn Valley, Wallis / Switzerland / TYP; this rare Pb-Tl-Ag-As-Sulfide forms dark grey metallic long-prismatic well terminated crystals of 2 mm on Dolomite matrix; KS 38,00 |
| Rathite xx | Lengenbach Quarry, Imfeld, Binn Valley, Wallis / Switzerland / TYP; long-prismatic dark grey-metallic 3 mm crystals on vugs in Dolomite matrix; KS 38,00 |
| Rathite xx | Lengenbach Quarry, Imfeld, Binn Valley, Wallis / Switzerland / TYP; dark grey-metallic microcrystals with strong dark red Internal reflections, intergrown to a 3,5 cm x 1,3 cm aggregate of pure Rathite, together with some Realgar and a 6 mm Sartorite crystal on typical Dolomite-Pyrite matrix; NS 380,00 |
| Rathite xx | Lengenbach Quarry, Imfeld, Binn Valley, Wallis / Switzerland / TYP; this rare Pb-Tl-Ag-As-Sulphide forms long prismatic well terminated dark grey metallic crystals of 3 mm on Dolomite matrix; MM 19,00; KS 28,00 |
| Rauenthalit xx | König Dänemark Stollen, Annaberg-Buchholz, Erzgebirge, Sachsen / Deutschland; weiße radialstrahlige um 2 mm große Aggregate, sehr reich als dichte Kristallkrusten neben etwas blätterigem Guerinit, langnadeligen Picropharmacolit und hellgrünem Annabergit. Hervorragende Stufen des selten Ca-Arsenates; KS 28,00; NS 48,00 |
| Realgar xx | Gauern open pit, Ronneburg, Gera, Thuringia / Germany; long-prismatic red crystals to 5 mm, very rich on vugs in pale brownish Calcite matrix. Old specimens collected in 1963; KS 38,00; NS 75,00 |
| Realgar xx (xx) | Alsar Mine, Allchar, Majdan, Kavadarci, Roszdan / Macedonia; A Realgar like you have seen never before. Massive aggregates of bright red crystals of 2 - 3 cm in grey matrix. In this location there is an outcropping 5 x 3 m vein of pure massive Realgar. This location was one of the most important sources of Realgar by the Romans, the Arabians and other historic cultures. Realgar was mined there over a period of 2000 years and stopped during the middle ages, when it was discovered that Realgar is not really healthy as a cosmetic product; KS 19,00; NS 28,00; HS 48,00 |
| Rebulite xl | Crven Dol Mine, Allchar, Majdan, Kavadarci, Roszdan / Macedonia / TYP; black metallic 1 mm aggregate of pure Rebulite. This very rare Thallium-Antimony-Arsenic Sulfide is so far known in only a few samples from Allchar; Capsel 95,00 |
| Reichenbachite xx | El Criollo III claim, Cerro Blanco, Tanti, Punilla Dept., Cordoba / Argentina; green radial-acicular crystal aggregates of 4 mm in a brownish matrix; KS 28,00; NS 38,00 |
| Renierit (xx) | Tsumeb Mine, Tsumeb, Otavi Mts., Otjikoto Region / Namibia; orange-bronze metallische um 5 mm Aggregate neben Tennantit und Galenit. Sehr gute Proben des seltenen Ge - Fe - Cu - Sulfid; MM 19,00; KS 28,00; NS 48,00 |
| Retgersite xx | Fünf Bücher Mosis Mine, St Andreasberg, Harz Mts., Lower Saxony / Germany; pale blue crystals of 0,5 mm, very rich with green Annabergite on grayish Gersdorffite Matrix; KS 38,00; NS 65,00 |
| Reticulite | Balos Bay, Akrotiri, Thira Island, Santorini Archipelago, Aegean Sea / Greece; Reticulite is the name for the lightest rock on earth. It is an explosively formed volcanic glass with a density of only 0,1 g/cm3. The Reticulite from Santorini was formed during the huge Minoan eruption 3700 years ago; NS 28,00; HS 48,00 |
| Rheniite xls | Kudriavy Volcano, Iturup Island, Kuril Islands, Far-Eastern Region / Russia/ TYP; grey metallic high lustrous tabulare crystals of 1 mm on Andesine matrix; MM 28,00; KS 48,00 |
| Rheniite xx | Kudriavy Volcano, Iturup Island, Kuril-Eastern Region / Russia / TYP; highly lustrous grey-metallic tabular crystals of 1 mm on Andesine matrix; MM 28,00; KS 48,00 |
| Rheniite xls | Kudriavy Volcano, Iturup Island, Kuril Islands, Far-Eastern Region / Russia/ TYP; highly lustrous grey metallic tabular crystals of 1 mm on Andesine matrix; MM 28,00; KS 48,00; NS 125,00 |
| Rhodochrosite xls | Einheit Mine, Elbingerode, Harz, Saxony-Anhalt / Germany; rose-colored rhombohedral crystals of 8 mm on a Calcite-Magnetite matrix. Nice specimens collected in the early 1980s; MM 14,00; KS 28,00 |
| Rhodochrosite xls | Dobrevo Mine, Probistip, Zletovo, Macedonia; rosa-pinkish well terminated crystal aggregates of 1 cm (MM). HS = 8 cm x 5 cm x 5 cm crystal aggregate with 3 cm large well terminated crystals. Outstanding good specimens from a really rare location; |
| Rhodochrosite xx | Uchucchacua Mine, Oyon Prov., Lima Dept. / Peru; red transparent high lustrous gemmy crystals of 8 mm, very rich with brownish glassy Neotocite on matrix. Very beautiful low priced specimens; KS 28,00; NS 48,00; HS 148,00 |
| Rhodochrosite xx | Morro da Mina Mine, Conselheiro Lafaiete, Minas Gerais / Brazil; very nice rose-pinkish botryoidal crystal aggregates of 3 cm (KS) to 4,5 cm (NS). Very old and historic specimens; KS 38,00; NS 65,00 |
| Rhodochrosite xx | Uchucchacua Mine, Oyon Prov., Lima Dept. / Peru; red transparent high lustrous gemmy crystals of 8 mm, very rich with brownish glassy Neotocite on matrix. Very beautiful low priced specimens; KS 28,00; NS 48,00; HS 148,00 |
| Rhodonite xx | Harstigen, Persberg, Filipstadt, Värmland / Sweden; well developed pale pinkish-red transparent crystals of 4 mm, very rich on vugs in Andradite-Actinolite matrix; KS 28,00; NS 48,00 |
| Rhodonite xx | Edwards Lake, 80 km east of Mayo, Yukon Territory / Canada; glassy pinkish 1 mm crystals very rich on vugs in massive pinkish Rhodonite matrix. Nice and unique specimens from a rare location in the deep wilderness in the centre of Yukon Territory; KS 19,00; NS 38,00 |
| Rhodonite xx | Franklin, Sussex Co., New Jersey / USA; rose-pinkish prismatic crystals of 1,5 cm on massive Rhodonite, together with some black Franklinite. Nice old specimens; NS 48,00 |
| Richelsdorfite xx | Burrus Mine, Pyramid District, Washoe Co., Nevada / USA; pale blue microcrystalline crystal aggregates very rich on vugs in Quartz-Goethite matrix; KS 19,00 |
| Richetite (xx) | Elias Mine, Tveit, Iveland, Aust-Agder / Norway; dark olive-green aggregates of 3 mm with waxy lustre, together with greenish-brown microcrystalline Coffinite and black Magnetite on veins in a Feldspar matrix; KS 48,00; NS 75,00 |
| Richterite xl | Richterite occurrence, Ladjuar Medam, Sar-e Sang, Koksha Valley, Badakhshan Prov. / Afghanistan; pale yellow glass clear gemmy double terminated prismatic single crystals of 2 cm (KS) to 3 cm (NS). Gemmy Richterite crystals are very rare. This are the finest specimens I have seen ever; KS 38,00; NS 75,00 |
| Richterite xx | Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Prov. / Afghanistan; nice crystal clusters of pale yellow to colorless gemmy prismatic crystals to 3 cm; KS 19,00; NS 38,00; HS 65,00 |
| Rilandite (xx) | Guruve District, Mashonaland Central / Zimbabwe; this rare Chromium silicate exists as a thin dark brownish impregnation on fracture zones on pale green-brown petrified wood; KS 75,00 |
| Ringwoodite (xx) | L5 IMB Meteorite, El Arouss, Laayoune Boujdour / Sahara; the very rare Magnesium Silicate forms inter growing with Olivine, Glass and native Iron in a ultra highly shocked impact melt breccia. 2 cm x 2 cm large polish slab; KS 75,00 |
| Rinkite xx | Skutesundskjaer, Barkevik, Langesundsfjorden, Larvik, Vestfold / Norwegen; violet-brownish long prismatic crystals of 2 cm in Nepheline-Feldspar matrix. Old specimens collect all round 1960; KS 38,00; NS 75,00 |
| Rinmanite xls | Babuna Valley, Jakupica Mts., Nezilovo, Veles / Macedonia; grey-black metallic crystals to 0,5mm together with Hematite, Gahnite and Phlogopite in Barite-Hedyphane matrix.; KS 48,00 |
| Rinneite xx | Merkers, Bad Salzungen, Thuringian Forest, Thuringia / Germany; orange-brown micro crystalline Rinneite, very rich with colorless Carnallite; KS 19,00; NS 38,00 |
| Riotintoite xls | Mina La Vendida, Sierra Gorda, II Region, Atacama Desert / Chile / TYP; this new Aluminum-Sulfate forms colorless microcrystalline crystal aggregates of 1 cm on fracture zones on Andesine matrix; KS 48,00 |
| Rivadavite xx | Eagle Borax Spring, Death Valley, Inyo Co., California / USA; white needle crystals of 0,5 mm and intergrown crystal aggrgates of 3 mm, in pale beige Konyaite-Santite-Halite matrix; KS 38,00; NS 75,00 |
| Robinsonite xx | Male Zelezne, Partizanska Lupca, Liptovsky Mikulas Co., Zilina Region / Slovakia; grey metallic needle crystals of 4 mm, inter-grown to massive crystal aggregates of 3 cm, very rich on Quartz matrix. Really good specimens of this uncommon Lead-Antimony Sulfide; KS 28,00; NS 48,00 |
| Rockbridgeite xls | Leveäniemi Mine, Svappavaara, Kiruna, Lappland / Sweden; black bright luster radial-acicular crystal aggregates of 5 mm, very rich on Magnetite-Hematite matrix, old specimens collect around 1980; KS 19,00; NS 28,00 |
| Rockbridgeite xx | Leonie I Mine, Auerbach, Upper Palatinate, Bavaria /Germany; lustrous greenish-black prismatic crystals of 2 mm on vugs in radial-acicular Goethite matrix. Idiomorphic well-terminated crystals of Rockbridgeite are very rare; MM 28,00; KS 38,00; NS 65,00 |
| Roeblingite xx | Langban Gruvan, Langban, Värmland / Sweden; colorless tabular crystals of 4 mm, very rich as platy aggregates on Garnet-Calcite matrix. Outstanding specimens collected around 1870 !!; MM 75,00; KS 248,00 |
| Roepperite (xx) | Buckwheat Tunnel, Franklin, Sussex Co., New Jersey / USA / TYP; Roepperite is a Managnoan-Zincian Fayalite. The mineral has developed green crystals of 5 mm together with glassy dark green 3mm Gahnite crystals; KS 28,00 |
| Roggianite xls | Alpe Rosso, Orcesco, Vigezzo Valley, Piedmont / Italy / TYP; this rare Beryllium-Calcium-Zeolite forms silky white parallel-growing thin acicular crystal aggregates of 1 cm on vugs in white Albite matrix; KS 28,00; NS 38,00 |
| Rondorfite xx | Caspar Quarry, Bellerberg, Ettringen, Eifel Mts, Rhineland-Palatinate / Germany / TYP; glassy orange crystal aggregates of 1 mm, very rich in a pale blue Hydroxylellestadite matrix; MM 38,00 |
| Rongibbsite xls | Unnamed prospect, Big Horn Mts., Maricopa Co., Arizona / USA / TYP; this new rare Pb-Al-Silicate with zeolitic structure occurs as colorless elongated tabular crystals of 0,5 mm in small cavities in Quartz matrix; MM 48,00 |
| Ronneburgite xls | Lichtenberg-Absetzhalde, Ronneburg, Gera, Thuringia / Germany / TYP; this very rare K-Mn-Vanadate occurs as red-brown diamond luster crystals of 0,3 mm together with yellow Hummerite crystals on pale matrix; MM 48,00 |
| Ronneburgite xx | Lichtenberg-Absetzhalde, Ronneburg, Thuringia / Germany / TYP; red-brown crystals of 0,3 mm together with some yellow Hummerite crystals on pale matrix; MM 65,00 |
| Roselite xx | Aghbar Mine, Bou Azzer, Tazenakht, Ouarzazate Prov. / Marocco; highly lustrous dark pinkish-red crystals of 5 mm, very rich on matrix. Very nice specimens; KS 19,00; NS 38,00 |
| Rosemaryite xx | Buranga Pegmatite, Gatumba, Western Prov. / Rwanda; glassy, dark greenish crystals of 1 mm intergrown to crystal aggregates of 1 cm, with some yellowish-brown Alluaudite in Albite matrix. Rosemaryite in real crystals is exceptionally rare; KS 65,00 |
| Rosenbergite xls | Le Cetine Mine, Rosia, Chiusdino, Siena Prov., Tuscany / Italy / TYP; minute colorless radial crystal aggregates in a vug in black limestone matrix; KS 38,00 |
| Rossmanite xls | Rozna Pegmatite, Zdarnad Sazavou, Vysocina Region, Moravia / Czech Republic / TYP; glassy pale pinkish long prismatic crystals of 2 cm, very rich in Quartz matrix. Nice specimens of this rare member of the Tourmaline group from the Type-location; KS 28,00; NS 38,00 |
| Rossmanite xx | Mt Mica Quarry, Paris, Oxford Co., Maine / USA; colorless-pale green to pale-pinkish long-prismatic crystals of 2,5 cm, with some pale yellowish 2 mm Cookite crystals, very rich on Albite-Quartz matrix; KS 28,00 |
| Röttisite | Hans Georg Mine, Röttis, Plauen, Vogtland, Saxony / Germany / TYP; green aggregates up to 1 cm in brownish Quartzite. Röttisite is a kind on Nickel analogue of Montmorillonite, and was descript by J.D. Dana in 1868, very old and unique specimens; KS 38,00 |
| Rouxelite xls | Sant'Olga tunnel, Monte Arsiccio Mine, Stazzema, Apuan Alps, Lucca Prov., Tuscany / Italy; this very rare Cu-Hg-Pb-Sb-sulfide forms acicular grey-metallic 1,5 cm crystal clusters of 5 mm needle-like crystals on Quartz matrix. This new discovery has brought out the world best Rouxelite specimens; KS 75,00; NS 125,00 |
| Rowlandite-(Y) (xx) | Österby Pegmatite, Österby, Gustavs, Säter, Dalarna / Sweden; dark-green glassy high lustrous aggregates up to 4 mm with some brownish Allanite-(Ce) in Quartz. Very old specimens collect all-round 1850; MM 38,00; KS 65,00 |
| Rruffite xx | Jote Mine, Pampa Larga, Tierra Amarilla, Copiapo, Atacama Desert, III Region / Chile / TYP; sky blue radial-acicular crystal aggregates of 2 mm, very rich on vugs in Quartz matrix; KS 95,00 |
| Rucklidgeite xls | Harrison Gold Mine, Harrison Lake, New Westminster Mining Division, British Columbia, / Canada; this rare Pb-Bi-Telluride occurs as grey metallic crystals to 1 mm always intergrown with 0,5 mm aggregates of native Gold in white Quartz matrix; |
| Ruifrancoite xx | Lavra de Joao Firmino, Linopolis, Divino das Laranjeiras, Minas Gerais / Brazil; brown prismatic crystals of 1 mm scattered on transparent pale greenish Brazilianite crystals of 2 cm and white Albite crystals, very nice specimens; KS 38,00; NS 65,00 |
| Ruizit xx | Grassy Hill Mine, Cornwall, Lebanon Co., Pennsylvania / USA; orange-braune hochglänzende langprismatische um 1 mm große Kristalle, sehr reich auf Kluftzonen in einer Matrix aus farblosen Apophyllit-(KOH) Kristallen. Zum Teil mit weißen Clinoenstatit. Es sind die besten Ruizit Stufen die ich je sah; KS 38,00; NS 75,00 |
| Russoite xls | "Bocca Grande" Fumarole, Solfatara di Pozzuoli, Phlegrean Fields, Campania / Italien / TYP; colorless diamond luster tabular crystals of 0,5 mm, very rich on beige Scoria matrix; MM 85,00 |
| Rutil xx | Champion Mine, White Mts., Mono Co., California / USA; reddish brown bright lustrous crystals up to 7 mm on Pyrophyllite-Anadalusite matrix; HS 38,00 |
| Rutile xl | Alchuri, Shigar Valley, Skardu District, Baltistan / Pakistan; orange brownish bright luster in transited light transparent gemmy prismatic single crystals of 2 cm. Rutile crystals in gemmy quality are quite rare; KS 28,00 |
| Rynersonite xx | Kararvet Pegmatite, Gamlaberget, Falun, Dalarna / Sweden; the rare Calcium-Tantalum-Oxide forms dark brownish bright lustrous crystals and crystal aggregates of 1 cm (MM) to 2 cm (KS) with some Feldspar matrix. Newly examined old material, collect all round 1870; MM 38,00; KS 95,00 |
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xx = crystals
(xx)= partial or intergrown crystals
X or x = single crystal
Capsel (capsule) = 0.1 to 0.5 cm
MM = micromount approx. 0.5 to 1.0 cm
KS = small piece approx. 1.5 to 4 cm;
NS = average-sized piece approx. 4 to 7 cm
HS = hand-sized piece 7 to 10 cm;
GS / MS = museum-sized pieces larger than 10 cm
xls = crystals; (xls) = partial or intergrown crystals; xl = single crystal.
Capsule= 0.1 to 0.5 cm; MM = micromounts approx. 0.5 to 1.5 cm; KS = small piece approx. 1.5 to 4 cm.
NS = average-sized piece approx. 4 to 7 cm; HS = hand-sized piece 7 to 10 cm; GS / MS = museum-sized pieces larger than 10 cm.