Mariposa Co., California, USA

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Alforsite : Ba₅[Cl\|(PO₄)₃], Titantaramellite : Ba₄(Ti,Fe³⁺,Fe²⁺,Mg)₄(B₂Si₈O₂₇)O₂Cl_x, Sanbornite : Ba₂[Si₄O₁₀], Quartz : SiO₂, Celsian : Ba[Al₂Si₂O₈]
	Trumbull Peak, Incline, Mariposa Co., California, USA SEM image. The most bright in BSE grain in the cener is Alforsite. Matrix composed by light-grey lamellar Sanbornite and almost black granular Quartz. Medim grey rectangular crystal in the upper right corner is Titantaramellite. Small medium grey isometric crystals included in Sanbornite in the opposite corner are Celsian. Collected by G.E. ...
© Pavel M. Kartashov	Photo ID: 248252 View Count: 51
Andalusite (Var: Chiastolite) : Al₂[O\|SiO₄]
	Mount Buckingham Group (Crown Point; Vanderbilt; Sunset III), Mariposa, Bagby-Mariposa-Mount Bullion-Whitlock District, Mariposa Co., California, USA Andalusite var Chiastolite, clearly show cross pattern. 30 x 30 mm. Photo and collection Pedro González. Equipment Sony DSC-S60 with closeup lenses.
	Photo ID: 130625 View Count: 156
Axinite-(Fe) : Ca₂Fe²⁺Al₂[OH\|BSi₄O₁₅], Amphibole Group
	Mariposa Co., California, USA Sharp crystals, brown with mauve shades, with an indeterminate amphibole that forms aggregates of acicular green crystals. We investigated the locality to document it more precisely but we haven’t found more details or similar comparative material, so we retain the name furnished by Folch documentation. Mariposa County, California, ...
© fabreminerals.com	Photo ID: 198382 View Count: 56
Fencooperite : Ba₆Fe³⁺₃Si₈O₂₃(CO₃)₂Cl₃·H₂O, Sanbornite : Ba₂[Si₄O₁₀]
	Trumbull Peak, Incline, Mariposa Co., California, USA ~1mm grain (black)
© Maurice de Graaf	Photo ID: 31800 View Count: 498
Gold : Au
	Colorado Mine (Colorado Quartz Mine), Colorado, Whitlock District, Bagby-Mariposa-Mount Bullion-Whitlock District, Mariposa Co., California, USA 18cm tall, known as "The Dragon" - Houston Museum of Natural Science specimen, shown at Tucson 2008.
© J.Ralph	Photo ID: 153026 View Count: 824
Gold : Au
	Mariposa Co., California, USA Crystallized Gold Specimen. THE CORSAGE 5 3/4 inches wide by 4 1/4 inches tall 27 Troy Ounces Abundantly lusterous gold crystals cover both sides of this stunning specimen.
© Lyla Tracy	Photo ID: 64928 View Count: 718
Gold : Au
	Quartzburg, Mariposa Co., California, USA Many areas of bright gold running through white quartz matrix. Lost of showy gold for the price. Mounted in box for protection. Overall size of mineral specimen: 30x25x12 mm. Size of individual crystals: .
© 2002 John H. Betts	Photo ID: 3342 View Count: 599
Gold : Au
	Mockingbird Mine (Talc & Lacy claim), Whitlock, Whitlock District, Bagby-Mariposa-Mount Bullion-Whitlock District, Mariposa Co., California, USA Large, crudely crystalline nugget of bright gold without matrix. Mounted on display stand for protection. No damage. Overall size of mineral specimen: 11x11x4 mm. Size of individual crystals: .
© 2002 John H. Betts	Photo ID: 3324 View Count: 560
Gold : Au
	Quartzburg, Mariposa Co., California, USA Several areas of visible gold up to 5 mm across in white quartz matrix. The specimen is mounted to acrylic base for display (can be removed). Overall size of mineral specimen: 3x2.5x2 cm. Size of individual crystals: .
© 2002 John H. Betts	Photo ID: 3799 View Count: 502
Gold : Au
	Colorado Mine (Colorado Quartz Mine), Colorado, Whitlock District, Bagby-Mariposa-Mount Bullion-Whitlock District, Mariposa Co., California, USA Extraordinary miniature. The group, very aerial and esthetic, is formed by crystals of perfectly defined faces and edges and has hoppered growth on the areas corresponding to the octahedron faces. It is from a locality famous for producing the best gold crystals. Colorado Quartz Mine, Mariposa County, California, USA. Specimen size: 1.9 x ... Mindat.org Photo of the Day - 27th Jul 2007
© fabreminerals.com	Photo ID: 103017 View Count: 459