Mineral Specimen and Product Inventory Search
- Availability
- Available
- Price
- $40.00
- Locality
- Gjerdingselva, Nordmarka, Lunner, Oppland, Norway
- Formula
- NaCaAlF6·H2O
- Size
- 3.5 x 3 x 2 cm - Miniature
Tiny colorless micro crystals in a vug unseen in the photos, but visible under the microscope. Pachnolite usually occurs in pegmatites with a fluorine component most notably but not limited to Ivigtut. Such pegmatites often contain fluorite, fluellite, prosopite, topaz, cryolite, ralstonite and other alkali aluminum fluoride granitic bodies which are peraluminous and usually in "NYF" (niobium-yttrium-fluoride) evolved and fractionated pegmatites. In this case Gjerdingselva is not a pematite but is alkali (soda) rich in flourine.
- Availability
- Sold
- Locality
- Metaline Falls, Pend Oreville Co., Washington, United States
- Formula
- (Mg,Al)2Si4O10(OH)·4H2O
- Size
- 14 x 7 x 5 cm - Cabinet
This stuff is otherwise known as "mountain leather", which is flexible, smooth and soft, Palygorskite with Calcite crystals clinging on.
- Availability
- Available
- Price
- $35.00
- Locality
- Panasqueira, Covilha, Castelo Branco dist., Portugal
- Formula
- CaMgPO4(OH)
- Size
- 0.2 x 0.2 x 0.2 cm - Thumbnail
- Tagged
- phosphate, pegmatite mineral
- Special Info
- Type Locality
- Special Info
- EDS Confirmed
Glassy orange crystal grain on probe mount (verified).
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- Ca3Be2(PO4)2(PO3OH)2·4H2O
- Size
- Capsule
- Tagged
- phosphate, beryllium, pegmatite mineral
- Special Info
- Type & Only Locality
There are three small pieces each maybe 1mm and less and each piece has great abundance of tiny white rice-shaped crystals of extremely rare Parafransoletite. This was really a one-time find from the 1980's when the Tip Top was mined for beryllium and the the rare beryllium phosphates were found. The red is Montgomeryite. You can buy these and sell two.
- Availability
- Available
- Price
- $35.00
- Locality
- Mt. Karnasurt, Lovozero Massif, Kola Peninsula, Russia
- Formula
- Na2ZrSi2O7
- Size
- 6 x 3.5 x 4 cm - Sm Cabinet
Gray matrix of Parakeldyshite with Aegerine needles.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- West Sunday Mine, San Miguel Co., Colorado, United States
- Formula
- VO2
- Size
- 2 x 2 x 1 cm - Thumbnail
- Tagged
- vanadium
Black needles to about 0.75mm. It's a good piece with exceptional crystals.
