Mineral Specimen and Product Inventory Search
- Availability
- Sold
- Locality
- Black Pine mine, Philipsburg, Granite Co., Montana, United States
- Formula
- Pb3Zn3Te6+O6(PO4)2
- Size
- 5 x 3 x 3.5 cm - Miniature
- Tagged
- phosphate, tellurium
White to a very faint blue and faint green spherulites of Kuksite less than 0.2mm with very good coverage all about matrix. The red and copper arrows point to the Kuksite. The yellow arrow points to platy bluish green Theisite and the blue arrows point to leaf Silver in foils to 1.5mm. Really, really good specimen.
EDS
- Availability
- Sold
- Locality
- M'sesa mine, Kambove dist., Haut-Katanga, Democratic Republic of Congo
- Formula
- Cu2PO4(OH)
- Size
- 4 x 2.5 x 2 cm - Miniature
- Tagged
- phosphate, copper
Deep dark green octahedral crystals to 2mm.
- Availability
- Available
- Price
- $150.00
- Locality
- Sandamap pegmatite, Dâures, Erongo, Namibia
- Formula
- CaFe2+Fe3+(PO4)2(OH)
- Size
- 2 x 1.5 x 2 cm - Thumbnail
- Tagged
- phosphate, pegmatite mineral
There is a single 0.75mm black crystal at the arrow plus a black zone, which is probably also Melonjosephite. The matrix is Triphylite, perhaps partially altered to Melonjosephite. The type locality description notes that Melonjosephite is an alteration of an Alluaudite group member. But, it is interesting to note that at the type locality, Angarf-South pegmatite, Alluaudite is not found (according to Mindat). Furthermore, Alluaudite is only noted at only two of the five pegmatites where Melonjosephite is found. So it may be worth examining your specimens of Melonjosephite to determine which Alluaudite group mineral is associated.
- Availability
- Available
- Price
- $425.00
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- Ca4MgAl4(PO4)6(OH)4·12H2O
- Size
- 6.5 x 6 x 2 cm - Sm Cabinet
- Tagged
- phosphate, pegmatite mineral
Simply beautiful specimen with purplish red micro Roscherite crystals upon which the pink clusters of Montgomeryite crystallized. The flip side features a little lighter Roscherite. On the edge, but not photographed are excellent pearly Englishite crystals. The matrix is Beryl.
- Availability
- Sold
- Locality
- White Cap mine, Pennington Co., South Dakota, United States
- Formula
- KFe2+2NbO2(PO4)2·2H2O
- Size
- 5.5 x 3.5 x 2 cm - Sm Cabinet
- Tagged
- phosphate
It's not a crystal, more like a broken grain in Siderite matrix to 0.75mm. Olmsteadite is extremely rare. I have never self-collected one myself in the 40 plus years of tromping the Hills.
- 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).
