Minerals
Gunnar Färber
Minerals
Gunnar Färber
| Yakhontovite | La Amorosa Mine, San Rafael Concesio, Villahermosa del Rio, Castellón, Valencian / Spain; massive waxy brownish aggregates (some as pseudomorphs after Tennantite) together with other copper minerals on a Quartz matrix; KS 38,00 |
| Yamatoite xx | Kurase Mine, Ehime Pref., Shikoku Island / Japan; greenish glassy aggregates of 1 mm in Calcite- Rhodonite matrix. This is the first find of real Yamatoite. This Manganese Vanadium Garnet was previously known only as a theoretical end-member or as exclusions in Goldmanite; MM 65,00; KS 95,00 |
| Yanomamite xx | Periquito Mine, Mangabeira, Monte Alegro de Goiás, Goiás / Brazil / TYP; white to beige crystals of 0,3 mm and micro crystalline aggregates with some pale green Scorodite on vugs in Quartz matrix. Very rich specimens; MM 28,00; KS 48,00 |
| Yanomamite xx | Periquito Mine, Mangabeira, Monte Alegro de Goiás, Goiás / Brazil / TYP; this very rare Indium Arsenate forms white to beige crystals of 0,3 mm and microcrystalline aggregates with some pale green Scorodite on vugs in Quartz matrix; |
| Yingjiangit xx | La Creusa U prospect, Les Marécottes, Le Trient Valley, Wallis / Schweiz; gelbe Kristallaggregate, neben hellgelben Uranophan sehr reich auf flachen Kluftzonen in Quarzit; KS 48,00 |
| Yoderite xx | Mautia Hill, Kongwa, Dodoma Region / Tanzania / TYP; glassy long prismatic dark blue crystals of 5 mm in Quartz Talc schist matrix; KS 38,00 |
| Yttrialite-(Y) xls | Hella1 Feldspar Quarry, Helle, Stokken, Arendal, Aust-Agder / Norway; glassy yellowish-brown crystal aggregates of 1 cm with brownish Fergusonite-(Y) and Zircon in Feldspar matrix. Newly examined old samples, collected around 1880; |
| Yttrian-Titanite xx | Lyngrott Pegmatite, Gloserheia, Froland, Aust-Agder / Norway; well terminated brownish crystals of 1 cm (KS) to 2 cm (NS) in Feldspar-Quartz matrix; KS 19,00; NS 38,00 |
| Yttrobetafite-(Y) (xx) | Frikstad, Iveland, Aust-Agder, Norway; highly lustrous orange-brown waxy aggregates of 5 mm together with brownish long-prismatic Polycrase-(Y) crystals to 1.5 cm and black Annite in an Oligoclasite matrix; KS 38,00; NS 65,00 |
| Yuanfuliite xx | Kittelgruvan, Nordmark, Filipstad, Värmland / Sweden; dark brownish to black longprismatic crystals of 3 mm in a grey Calcite matrix. The crystals are intergrowths of Yuanfuliite with Ludwigite; KS 75,00 |
I offer an extensive assessment and analysis service. I´ve own modern REM-EDX technology available, please ask for more details.
the prices relate directly to the expense of acquiring the specimens and the work (cleaning, testing, etc.) done on them. All prices include the current 7% VAT on minerals.
I give a discount with large orders only.
I accept regular bank transfer, Master, Visa cards and Paypal.
I describe the material as accurately as possible, to minimize any possible discrepancy felt on receipt. owever, if you are not satisfied with a specimen, please send it back promptly in its original condition, well packed.
Inside Germany the postage costs € 5.50; for orders of € 150 and over, I prepay shipping. Within the EU shipping costs € 8,50; shipping is free on orders over € 250. Outside the EU shipping for under 1 kg is € 8,50. For over 1 kg costs at least € 25.50 (depending on weight and the respective postal rates). All parcels are insured.
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.