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Monazite-(Sm) : (Sm,Gd,Ce,Th)(PO4) | |
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Brown Derby No. 1, Brown Derby Mine, Ohio City, Quartz Creek District, Gunnison Co., Colorado, USA Crystalline associated with lepidolite; 6.8x5x1.5cm; This specimen was analyzed at the University of Oklahoma, and confirmed. Only the third reported occurrence, and large samples for the species, all obtained from one oval mass on lepidolite, cleavelandite, quartz pegmatite. Truly the most unique find of my collecting experience. Many thanks to ... |
| Photo ID: 261356 View Count: 44 | |
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Brown Derby No. 1, Brown Derby Mine, Ohio City, Quartz Creek District, Gunnison Co., Colorado, USA Crystalline associated with lepidolite; 5x3.5x1.7cm; Another wonderful specimen of this extremely rare species. This piece registered 1750 CPM on my Radalert 100. Collected by Rudy Bolona, Sept. 2009. |
| Photo ID: 261357 View Count: 37 | |
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Brown Derby No. 1, Brown Derby Mine, Ohio City, Quartz Creek District, Gunnison Co., Colorado, USA This is a small piece of crystalline Monazite-(Sm) in a Cleavelandite matrix which I collected in Sept. 2009 There appear to be other minerals, but they are currently unidentified. This is a rare piece from this newly discovered occurance. Size 2.5cm x 1.8 cm x .7cm |
| Photo ID: 262057 View Count: 29 | |
Monazite-(Sm) : (Sm,Gd,Ce,Th)(PO4), Lepidolite : K(Li,Al)3(Si,Al)4O10(F,OH)2, Albite (Var: Cleavelandite) : Na[AlSi3O8], Quartz : SiO2 | |
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Brown Derby No. 1, Brown Derby Mine, Ohio City, Quartz Creek District, Gunnison Co., Colorado, USA This is one of the few rare pieces of Monazite-(Sm) from the Brown Derby #1. It was collected by Rudy Bolona, whom I was collecting with, who kindly sent it to me. This specimen also contains finer grained Lepidolite, small amounts of Cleavelandite, quartz and other unidentified minerals. Size 5.4cm x 3.7cm x 1.7cm |
| Photo ID: 262063 View Count: 16 | |
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