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
- 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
- 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
- Locality
- Molly Gibson mine, Aspen, Pitkin Co., Colorado, United States
- Formula
- Cu(Ag,Cu)6Ag9As2S11
- Size
- 4.5 x 2.5 x 0.7 cm - Miniature
- Tagged
- sulfide, copper, silver
- Special Info
- Type Locality
- Special Info
- Microprobed
This is a type locality Pearceite from an old, classic silver bearing Colorado locality. The piece is sawed and polished on one side for microprobe work with elemental percentages on a label. The other side is rough and shows dark dull grey color with really no crystallized area.
- Availability
- Available
- Price
- $75.00
- Locality
- Långharsholmen, Alnö, Sundsvall, Västernorrland, Sweden
- Formula
- CaTiO3
- Size
- 8 x 4.5 x 4 cm - Sm Cabinet
Knopite is a variety of perovskite rich in cerium. The crystals are reddish brown and dypramidal to about 1mm and are quite nice.
- Availability
- Available
- Price
- $65.00
- Locality
- Cap Garonne mine, Le Pradet, Var, France
- Formula
- Ag4Hg5S5(I,Br)2Cl2
- Size
- 5 x 2.5 x 3 cm - Miniature
- Tagged
- silver
One little, less than 1mm, red acicular sprays of the very rare silver-mercury halide.
