Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Lauzon Farm, Oka complex, Laurentides, Quebec, Canada
- Formula
- (Ca,Na)(Nb,Ti)O3
- Size
- Thumbnail 2.2x1.5x1.2cm
- Special Info
- Type Locality
Small specimen, but fairly rich with 3-4mm cubic crystals of Latrappite, a member of the Perovskite group. Latrappite is a very rare niobium minral found in only three localities worldwide.
- Availability
- Sold
- Locality
- Buckeye Mountain, Polk Co., Arkansas, United States
- Formula
- (Fe3+,Fe2+,M)8+x(OH,H2O)9(H2O)2(PO4)5, M = Fe3+
- Size
- Miniature 4.5x3.5x2cm
- Tagged
- phosphate
Laubmannite is a combination of several rare phosphate minerals: Kidwellite, Dufrenite, and Beraunite. Each is a different phosphate phase of similar compositions producing concentric color zones. This is a real nice specimen.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Mangualde, Viseu dist., Portugal
- Formula
- Mn2+Fe3+2(PO4)2(OH)2·8H2O
- Size
- SmCabinet 6x4.5x5cm
- Tagged
- phosphate , pegmatite mineral
Yellow Laueite crystals to 0.5mm or more on purple Strengite. Most of the matrix seems to altered to Rockbridgeite. The fringe of the vug which encloses the strengite is Bermanite. There is perhaps some hints of Jahnsite-(CaMnMn). Some areas contain a lot of carbonate apatite. The exact mine locality is not known. The Mangualde district pegmatites are granitic and rich in phosphates. Garske label.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany
- Formula
- Mn2+Fe3+2(PO4)2(OH)2·8H2O
- Size
- SmCabinet 6x3x2cm
- Tagged
- phosphate
Spongy, limonitic specimen with abundant, fairly large yellow Laueite crystals to 1mm.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany
- Formula
- Mn2+Fe3+2(PO4)2(OH)2·8H2O
- Size
- SmCabinet 6.5x5x4cm
- Tagged
- phosphate , pegmatite mineral
Very rich specimen with good Laueite crystals to 0.75mm with strands and groups of yellowish Strunzite. Rockbridgeite is found in the matrix.
- Availability
- Sold
- Locality
- Drain, Douglas Co., Oregon, United States
- Formula
- Ca(Si4Al2)O12·4H2O
- Size
- SmCabinet 7x6x3cm
White sharp crystals of Laumontite to 1.3cm. Excellent specimen.
