Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Gifurwe mines, Burera dist., Northern Prov., Rwanda
- Formula
- CeW2O6(OH)3
- Size
- Thumbnail 2.5x2x1.5cm
Extremely rare yellow rosettes of Yttrotungstite-(Ce).
- Availability
- Sold
- Locality
- Kramat Pulai mine, Kinta dist., Perak, Malaysia
- Formula
- YW2O6(OH)3
- Size
- Thumbnail 1.9x1.5x1.3cm
- Tagged
- REE mineral
The entire specimen is Yttrotungstite. In places are seen single platy crystals to 0.4mm or so. Very good specimen.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Kramat Pulai mine, Kinta dist., Perak, Malaysia
- Formula
- YW2O6(OH)3
- Size
- Thumbnail 1.7x1.2x1cm
- Tagged
- REE mineral , tungsten
- Special Info
- Type Locality
The entire mass is Yttrotungstite-(Y) and is vuggy. Filling the vugs are a variety of habits of this very rare mineral including globular, smooth and spheroidal, and platy crystals. It is found only in Malaysa.
- Availability
- Sold
- Locality
- Midsandur, Iceland
- Formula
- CaAl2Si6O16 ²4H2O
- Size
- SmCabinet 8x5.5x4cm
- Tagged
- zeolite
The locality is vague, is probably the nearest port or town near the actual deposit. The specimen is loaded with colorless, murky, long, flat tabular or bladed crystals to 2mm associated with equant Calcite crystals. One look at the locality review on Mindat and you can conclude the mineral forms in active geothermal environments. A rare zeolite.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Eveslogchorr Mt, Khibiny Massif, Kola Peninsula, Russia
- Formula
- K4(Ca,Na)14Sr2Mn(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3
- Size
- SmCabinet 8x5x2cm
Red platy segregations in metamorphosed matrix. See old Russian label.
