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- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Size
- 7 x 5 x 2.5 cm - Sm Cabinet
Light yellow worm-like growth of carbonate apatite, not a true species, just a lot of carbonate.
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- Mn2+5(PO4)2(PO3OH)2·4H2O
- Size
- 5 x 4 x 4 cm - Miniature
- Tagged
- phosphate, pegmatite mineral
Salmon pink crystals to 1cm with dark blue Vivianite. The Hureaulite crystals are excellent showing strations and good forms.
- 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.
- 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.