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- Availability
- Sold
- Locality
- Otto Mountain, near Baker, San Bernardino Co., California
- Formula
- Pb2Cu2(Se4+O3)SO4(OH)4
- Size
- 2 x 1.7 x 1.2 cm - Thumbnail
- Tagged
- copper, selenium
Bundles of blue cystals in groups to 0.75mm with a host of other minerals.
- Availability
- Available
- Price
- $275.00
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- (Na,Ca,Cu)1.6(Mg,Fe3+,Al)3(AsO4)3
- Size
- 3 x 2.5 x 1.5 cm - Thumbnail
- Tagged
- arsenate, copper
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
Nickenichite is named for the village of Nickenich, Germany and nearby the Nickenicher Sattel volcano. At this locality, it also occurs in volcanic fumarole rich in vanadium vapors. This specimen contains, beautiful deep azure blue micro crystals to about 1mm. This is the second worldwide occurence of this rare arsenate far superior to the type locality. It is verified by Dr. Igor Pekov.
The exact locality is: Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
- 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
- Available
- Price
- $25.00
- Locality
- Majuba Hill mine, Pershing Co., Nevada, United States
- Formula
- Cu9(AsO4)2(SO4)(OH)10·7H2O
- Size
- 4.5 x 3.5 x 3 cm - Miniature
- Tagged
- arsenate, copper
- Special Info
- Type Locality
Just a little Parnauite on this specimen as seemingly formless crystals less than 1mm.
- Availability
- Sold
- Locality
- San Juan de Rayas mine, Guanajuato, Mexico
- Formula
- Cu(Ag,Cu)6Ag9As2S11
- Size
- 2 x 2.5 x 1.5 cm - Thumbnail
- Tagged
- sulfide, copper, silver
Large Pearceite or Polybasite crystals to 1.5cm with Pyrite.
- Availability
- Available
- Price
- $95.00
- Locality
- Předbořice, Bohemia, Czech Republic
- Formula
- Cu3SbSe4
- Size
- 0.7 x 0.3 x 0.3 cm - Thumbnail
- Tagged
- sulfide, copper, selenium
- Special Info
- Type Locality
Microscopic grains with probably Clausthalite. The specimen has beed cut on one side for microprobe analysis.