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Samarskite-(Yb) : (Yb,Fe3+)2(Nb,Ta)2O8 | |
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Little Patsy pegmatite (Patsy pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA Glassy masses of Samarskite-Yb intermixed with ferrocolumbite in a 3 cm specimen from the type locality, Little Patsy Pegmatite, South Platte Distr., Colorado, USA. Specimen and photot: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 94251 View Count: 358 |
Samarskite-(Yb) : (Yb,Fe3+)2(Nb,Ta)2O8 | |
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Little Patsy pegmatite (Patsy pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA Partially metamicted Yb-dominant samarskite (Yb content to be analyzed). Field of view is 5.3 mm. Obtained from Jiri Spalek (part of the author's material) - thanks! |
| © Ł Kruszewski 2007 | Photo ID: 133647 View Count: 165 |
Samarskite-(Yb) : (Yb,Fe3+)2(Nb,Ta)2O8, Columbite-(Fe) : FeNb2O6 | |
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Little Patsy pegmatite (Patsy pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA A large radial growth of samarskite and ferrocolumbite; 6.5x6.5x2cm; the samarskite is the brown material. Very radioactive! Specimen collected by Rudy Bolona. |
| Photo ID: 141230 View Count: 147 | |
Samarskite-(Yb) : (Yb,Fe3+)2(Nb,Ta)2O8, Columbite-(Fe) : FeNb2O6 | |
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Little Patsy pegmatite (Patsy pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA Black lustrous Samarskite-(Yb) with Ferrocolumbite; 4.5x3.2x1.8cm; Quite radioactive; Specimen collected by Rudy Bolona; Oct. 2005. |
| Photo ID: 141227 View Count: 137 | |
Samarskite-(Yb) : (Yb,Fe3+)2(Nb,Ta)2O8 | |
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Little Patsy pegmatite (Patsy pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA A rich specimen of black Samarskite(Yb). 43 x 27 x 19 mms. Photo and collection of Lee Johnson. |
| © Lee Johnson | Photo ID: 202499 View Count: 71 |
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