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- Availability
- Available
- Price
- $25.00
- Locality
- Big Indian Copper mine, San Juan Co., Utah, United States
- Formula
- Cu2AsO4(OH)
- Size
- 5 x 4 x 1 cm - Miniature
- Tagged
- arsenate, copper
Green radial groups to 3mm.
- Availability
- Sold
- Locality
- Koashva Mt., Khibiny Massif, Kola Peninsula, Russia
- Formula
- CuFeS2·nH2O
- Size
- 2.5 x 1.5 x 0.8 cm - Thumbnail
1-2mm bronzy grains.
- Availability
- Sold
- Locality
- Bueycito, Santiago de Cuba Prov., Cuba
- Formula
- Ca8Mn3+10(SiO4)3(Si3O10)3(OH)10·4H2O
- Size
- 2 x 1 x 1.2 cm - Thumbnail
Sparkly deep red micro crystals. Nice piece.
- Availability
- Available
- Price
- $75.00
- Locality
- Teufelsmuhl, Habach valley, Salzburg, Austria
- Formula
- K(AlSi3)O8
- Size
- 5 x 4.5 x 4.5 cm - Miniature
Superb, sharpand large crystal group of striated Orthoclase, variety adularia. The largest crystal is 4.5cm.
- Availability
- Available
- Price
- $125.00
- Locality
- Karlsbad, Bohemia, Czech Republic
- Formula
- K(AlSi3)O8
- Size
- 5.5 x 4 x 4 cm - Sm Cabinet
A naturally corroded karlsbad twinned set of Orthoclase crystals.
- Availability
- Sold
- Locality
- South Betroka, Madagascar
- Formula
- K(AlSi3)O8
- Size
- 4 x 3 x 3 cm - Miniature
Excellent glassy light yellowish green, gemmy total crystal.