Mineral Specimen and Product Inventory Search
SOLD
- Availability
- Sold
- Locality
- Jakobsberg mine, Filipstad, Värmland, Sweden
- Formula
- Mn2+Fe3+2O4
- Size
- 7 x 5 x 3 cm - Sm Cabinet
Black crystal grains to 1mm throughout matrix.
- Availability
- Available
- Price
- $40.00
- Locality
- N'Chwaning mines, Kuruman, Northern Cape prov., South Africa
- Formula
- Mn2+Fe3+2O4
- Size
- 3 x 2 x 1 cm - Thumbnail
Shiny black crystals to 5mm.
- Availability
- Available
- Price
- $40.00
- Locality
- Kachin State, Myanmar
- Formula
- NaAlSi2O6
- Size
- 4.5 x 4.5 x 1.5 cm - Miniature
A sliced faint geen section of coarse crystalline Jadeite.
SOLD
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- CaMn2+Fe2+2Fe3+2(PO4)4(OH)2·8H2O
- Size
- 5 x 3 x 3 cm - Miniature
- Tagged
- phosphate, pegmatite mineral
Creamy yellow crystals of Jahnsite with crystals to about 3mm. It may be a replacement. Very nice older specimen.
- Availability
- Available
- Price
- $35.00
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- CaMn2+Mg2Fe3+2(PO4)4(OH)2·8H2O
- Size
- 4.5 x 3 x 3.5 cm - Miniature
- Tagged
- phosphate, pegmatite mineral
Yellow to yellowish green Jahnsite to about 0.5mm in clusters to 3mm. It is associated with dark green to rusty red Mitridatite. If I had to guess it is Jahnsite-(CaMnMg).
- Availability
- Available
- Price
- $55.00
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- CaMn2+Mg2Fe3+2(PO4)4(OH)2·8H2O
- Size
- 7.5 x 5.5 x 5.5 cm - Sm Cabinet
- Tagged
- phosphate, pegmatite mineral
Yellow Jahnsite crystals to about 0.5mm with good coverage. There may be two different types of Jahnsite as another is more green than yellow, if you can go by color. Other minerals include dark red Rockbridgeite and dark green Mitridatite.
