Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Dafeng, Shanglin Co., Guangxi Zhuang, China
- Formula
- Sb2AsS2
- Size
- Thumbnail 2.5x2x1cm
Excellent specimen of dull grey Paakkonenite as the matrix hosting good sprays of Kermesite. There are also numerous crystals of which I have never seen before, but are probably apatite of valentinite. They are striated and tapering and very unusual in form.
- Availability
- Sold
- Locality
- Kalkar quarry, Santa Cruz Co., California, United States
- Formula
- BaSnSi3O9
- Size
- Thumbnail 2.5x2x1.5cm
- Special Info
- Type Locality
Nearly impossible to get on the market...although there is probably more out there. Pabstite is hard to ID without the aid of the UV light as it glows bright blue under short wave. Once located in the matrix with UV, the crystals can be distinguished. In this specimen they are white to colorless and platy to maybe 1-3mm. The quarry is nonexistent I believe.
- Availability
- Sold
- Locality
- Kalkar quarry, Santa Cruz Co., California, United States
- Formula
- BaSnSi3O9
- Size
- Miniature 3x3.5x2.5cm
- Tagged
- tin
- Special Info
- Fluorescent
- Special Info
- Type Locality
There are several colorless crystal grains in matrix. The largest at the arrow is 1.5mm, which is large for the species. The rest are smaller. All the grains are identifiable with UV since the fluoresce a bright blue. It is the tin analogue of Benitoite and very rare.
- Availability
- Sold
- Locality
- Kalkar quarry, Santa Cruz Co., California, United States
- Formula
- BaSnSi3O9
- Size
- Miniature 4.5x2.5x2cm
- Tagged
- tin
- Special Info
- Fluorescent
- Special Info
- Type Locality
Pabstite is a rare barium-tin silicate and found at only four localities worldwide. The Kalkar quarry is the type locality. It is hard to identify the colorless crystals in matrix without the aid of shortwave UV. This is one of the richest specimen I've seen with grains to around 2mm.
- Availability
- Sold
- Locality
- Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland
- Formula
- NaCaAlF6·H2O
- Size
- SmCabinet 5.5x4x2.5cm
- Special Info
- Type Locality
This is kind of a teaser to the upcoming Ivigtut Special Edition. I have a few better than this, but this is a good specimen also with good 0.75-1mm Pachnolite crystals with pyramidal terminations and iron-stained. There are other areas which show waterclear Pachnolite crystals. There is also wider prismatic Thomsenolite crystals to 1mm and some of these have little epitaxial Pachnolite crystals growing on the tips. Overall a facsinating specimen.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland
- Formula
- NaCaAlF6·H2O
- Size
- Thumbnail 3x3x1.5cm
- Special Info
- Type Locality
A smaller specimen with a 2cm vug loaded with Pachnolite with perfect parymidal terminations.
