Mineral Specimen and Product Inventory Search
- Availability
- Available
- Price
- $95.00
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- Cu2+7Te4+O4(SO4)5·KCl
- Size
- 2.1 x 1.7 x 0.9 cm - Thumbnail
- Tagged
- copper, tellurium
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
- Special Info
- Type & Only Locality
This is a one locality mineral and is an extremely rare copper tellurate. The specimen has a tiny orange tabular crystal to about 0.75mm or maybe a little less. Identified by Dr. Igor Pekov, to whom described the mineral.
The excat locality is: Yadovitaya fumarole, Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Krai, Russia
- Availability
- Sold
- Locality
- 10th level, Potosi mine, Santa Eulalia, Chihuahua, Mexico
- Formula
- Fe2+Sn4+(OH)6
- Size
- 8 x 5 x 2 cm - Sm Cabinet
- Tagged
- tin
A set of orange, octahedral 2.5mm Natanite crystals with very fine clear Fluorite and lustrous black Ilvaite. The flip side is loaded with excellent black shiny Ilvaite crystals to 4mm and tinly less than 1mm orange Natanite. Exceptional specimen.
Natanite is a rare oxide of tin and found in less than 15 places worldwide. There are no US localities.
- Availability
- Sold
- Locality
- 10th level, Potosi mine, Santa Eulalia, Chihuahua, Mexico
- Formula
- Fe2+Sn4+(OH)6
- Size
- 4.5 x 3.5 x 1.5 cm - Miniature
- Tagged
- tin
Bright Orange octahedral crystal with cubic faces to nearly 2mm on shiny black Ilvaite crystals with waterclear Fluorite and possible brown feathery Rhodochrosite. Natanite is a rare oxide of tin and found in less than 15 places worldwide. There are no US localities. Of course there are no economic deposits of tin in the US either, so not a whole lot of occurences of tin mineralization.
- Availability
- Sold
- Locality
- Koashva Mt., Khibiny Massif, Kola Peninsula, Russia
- Formula
- Na5Ca4(PO4)4F
- Size
- 3 x 3 x 2.5 cm - Thumbnail
- Tagged
- phosphate, pegmatite mineral
- Special Info
- Poisonous!!
- Special Info
- Type Locality
Supreb rare white, acicular crystals of Nefedovite with purplish red Villiaumite. The Villiaumite occur as graphic intergrowths with the Nefedovite. Awesome specimen, very rare in nature and in the market. The associated Villiaumite is highly toxic and poisonous if ingested.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Bear Meadow Adit, Quartz Hill deposit, Ketchikan district, Alaska, United States
- Formula
- NiAs
- Size
- 11.5 x 6 x 3 cm - Cabinet
- Tagged
- Ore Minerals
All of the Cobalt specimens in this update probably originated from a study conducted in the 1960's. The results were summarized in the landmark publication "The Silver - Arsenides Deposits of the Cobalt-Gowganda Region, Ontario" edited by L. G. Berry with major contributions by W. Petruk and J. L. Jambor. On page 108, Petruk describes the five assemblages of mineralization at Cobalt. This specimen clearly fits into group #1, the Nickel-Arsenide assemblage characterized by complex botryoidal masses of Nickeline inter-growths with Breithauptite, Safflorite and Cobaltite. The minerals form concentric layers and it would be impossible to differentiate visually all the minerals without a thorough microprobe study. Looking closely at the ore, one can see the plumose-texture characteristic of all of these ore specimens. It is sawed flat and polished on one side.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Cobalt-Gowganda dist., Ontario, Canada
- Formula
- NiAs
- Size
- 9 x 7 x 2 cm - Sm Cabinet
- Tagged
- Ore Minerals
Classic nickel arsenide assemblage as described by Petruk in "The Silver-Arsenide Deposits of Cobalt...", This specimen shows the plumose ore texture so typical of Cobalt but mostly composed of brassy colored Breithauptite and Nickeline with a distinct rose hue. This assemblage was found most prevalent in at the ends, tops and bottoms of most veins. Excellent specimen showing also the Dolomitic gangue. It is sawed flat on one side and shows natural breakage on the other.
