3910 Boussingaultite from The Geysers, California, USA
Colourless/yellowish Boussingaultite from The Geysers, West Mayacmas Mining District, Sonoma County, California, USA. 45 x 25 x 17mm.
California
3447 Alumohydrocalcite, Contra, California, USA
Alumohydrocalcite – Contra, Contra Costa Co., California, USA. Specimen measures 50x35x17mm.
3443 Gageite, Pennsylvania Mine, Sugarloaf Mountain, California, USA
Gageite – Pennsylvania Mine, Sugarloaf Mountain, Black Wonder Mining District, Santa Clara Co., California, USA. Specimen measures 33x20x10mm.
3022 Axinite-(Fe), New Melones Spillway (Dam site), California, USA
3022 Axinite-(Fe), New Melones Spillway (Dam site), Calaveras County, California, USA. 50x35x30mm. 1970’s find.
3176 Vonsenite, New City Quarry, California, USA
3176 Black crystalline Vonsenite, New City Quarry, Riverside, Riverside Co., California, USA. 50x23x16mm.
3165 Santaclaraite (TL), Pennsylvania Mine, California, USA
3165 Santaclaraite (Type Locality), Pennsylvania Mine, Sugarloaf Mountain, Black Wonder Mining District, Santa Clara Co., California, USA. 40x30x22mm.
3173 Cuproroméite, Comanche Mine, California, USA
‘Cuproroméite’ from the Comanche Mine, Blind Spring Mining District, Benton Range, California, USA. Originally named partzite. Partzite discredited in IMA proposal: 16-B. Found to be a very fined grained mixture of a plumboroméite-like oxide phase...
2741 ‘Crestmoreite’, Tobermorite, Ellestadite, Crestmore quarries, California, USA
Old-school specimen of “crestmoreite” (white) in blue Calcite. Originally reported from Crestmore quarries, Crestmore, Riverside Co., California, USA. Taylor (1953) showed that crestmoreite is a submicroscopic intergrowth of “wilkeite” and tobermorite. This specimen hosts snow-white...
2517 Hanksite, Searles Lake, California, USA
Hanksite (Type Locality) | Searles Lake, San Bernardino Co., California, USA | 30x25x20mm | No. 2517 |
2207 Benitoite, California State Gem Mine, USA
Benitoite (blue) & Neptunite (black) with Natrolite (white) | California State Gem Mine, Santa Rita Peak, New Idria Mining District, California, San Benito Co., USA. [40x25x20mm]
2324 Sanbornite, Gillespite, Celsian, Trumbull Peak, USA
White Sanbornite (Type Locality), Gillespite (red) with Celsian (whitish/translucent) from Trumbull Peak, Incline, Mariposa Co, California, USA. [53x25x5mm] No. 2324.
1914 Neptunite, Joaquinite-(Ce) – California State Gem Mine
Na2KLiFe2+2Ti2Si8O24 Neptunite is a silicate mineral named for Neptune, the Roman god of the sea. It was first described in 1893 for an occurrence at the type locality for the species – Narssârssuk pegmatite, Narsaarsuk...