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- 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.
- 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
- 4 x 3 x 2.5 cm - Miniature
- Tagged
- phosphate, pegmatite mineral
Exceptional micro crystals of glassy yellow Jahnsite, pink Hureaulite and light purple Leucophosphite.
- Availability
- Sold
- Locality
- Sapucaia mine, Galileia, Doce valley, Minas Gerais, Brazil
- Formula
- Na10Ca6Mg18Fe2+25(PO4)36
- Size
- 0.9 x 0.6 x 0.3 cm - Thumbnail
- Tagged
- phosphate, pegmatite mineral
A small chip with resinous black Johnsomervilleite.
- Availability
- Available
- Price
- $20.00
- Locality
- Lake Boga granite quarry, Lake Boga, Victoria, Australia
- Formula
- NaFe3+9(PO4)6(OH)11·3H2O
- Size
- 2 x 1.8 x 1.6 cm - Thumbnail
- Tagged
- phosphate
It's hard to see in the photos, but the Kidwellite are the tiny yellow-green spheroidal crystal groups.
- Availability
- Available
- Price
- $25.00
- Locality
- York mine, Polk Co., Arkansas, United States
- Formula
- NaFe3+9(PO4)6(OH)11·3H2O
- Size
- Thumbnail
- Tagged
- phosphate
Green "beads" of Kidwellite with deep red Beraunite.
- Availability
- Available
- Price
- $25.00
- Locality
- Crosscut Creek, Rapid Creek, Yukon Territory, Canada
- Formula
- BaFe2+2Al2(PO4)3(OH)3
- Size
- Thumbnail
- Tagged
- phosphate
Dark glassy bluish green rare Kulanite groups to 3mm.