Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Mangabeira Tin deposit, Monte Alegre de Goiás, Goiás, Brazil
- Formula
- InAsO4·2H2O
- Size
- Chip xxcm
- Tagged
- arsenate
- Special Info
- Type Locality
A small specimen but with rich coverage of this light blue indium arsenate. There are several tiny rosette crystals. This is the type and only locality. Yanomamite represents the only indium arsentate and is one of twelve know minerals containing essential indium. Jeepers!
- Availability
- Sold
- Locality
- Torr Works quarry, Cranmore, Somerset, England
- Formula
- Pb2O(OH)Cl
- Size
- Chip xxcm
- Special Info
- Type & Only Locality
Tiny white fibrous bundle of this new lead oxychloride mineral published in CNMNC Newsletter No. 16, August 2013, page 2706; Mineralogical Magazine, 77, 2695-2709. From the collection of Mark N. Feinglos, M.D. Visually confirmed by one of the author's.
- Availability
- Sold
- Locality
- Kladska, Bohemia, Czech Republic
- Formula
- K2Ca(UO2)7(PO4)4(OH)6·6H2O
- Size
- Miniature 4x1.5x1cm
- Tagged
- phosphate
- Special Info
- Radioactive!!
Good coverage of yellow scaly crystals of Yingjianite. Rare.
- 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
- 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.
