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Albite : Na[AlSi3O8] | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil Platy semi-lustrous colorless slightly translucent tabular crystals of albite to 2.0 cm in size mostly covering matrix. In very good condition damage-wise; nice for the species. Ex Gene and Sally LaBerge collection. Ref: The Mineralogical Record: 30:150. Size: 4.7 x 4.5 x 2.9 cm |
| © Dan & Diana Weinrich Minerals | Photo ID: 228051 View Count: 36 |
Beryl (Var: Aquamarine) : Be3Al2Si6O18 | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil Doubly-terminated crystal of pale blue aquamarine beryl. There are two contacts with intersecting crystals (very clean and naturally crystallized) but the crystal surfaces are lustrous and undamaged. Ex. A. Stevenson collection #223. Overall size of mineral specimen: 24x10x6 mm. Size of individual crystals: 24 mm. |
| © 2001 John H. Betts | Photo ID: 2060 View Count: 593 |
Beryl (Var: Aquamarine) : Be3Al2Si6O18 | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil Single crystal of gemmy aquamarine beryl without matrix. Both terminations are missing, this is a segment of a longer crystal. The sides have a complex, striated pattern. Overall size of mineral specimen: 45x15x10 mm. Size of individual crystals: 45 mm. |
| © 2002 John H. Betts | Photo ID: 4610 View Count: 459 |
Elbaite : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil Bicolor Tourmaline sample with 5,5 x 5 cm . Sample from Rolando and Bruno Gioia collection. Photo by Tito Ferrara. |
| © Bruno Gioia | Photo ID: 41220 View Count: 499 |
Elbaite : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil Terminated bicolor elbaíte cristal. 2,7 x 1,2 cm |
| © Bráulio | Photo ID: 46530 View Count: 264 |
Elbaite : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18], Quartz : SiO2 | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil 3.2 x 3 x 4.4 cm |
| Photo ID: 110831 View Count: 110 | |
Elbaite : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil 4.8 x 1.3 x 1.3 cm. A cutter-quality gem crystal of tourmaline from Brazil, which actually has an interesting color banding to it. The close-up shot you see is through the more spectral green section, which is actually a wide band between two sections of a vivianite-like bottle green. It has a fine, sharp pyramidal termination. Gemmy from top to ... |
| © Rob Lavinsky | Photo ID: 119159 View Count: 92 |
Elbaite : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil A beautiful cranberry red transparent single terminated glassy elbaite crystal measuring 4.2 x 1.1 x 0.8 cm in size overall. Complete all around 360 degrees; some natural etching is present. No damage. Ex Gene and Sally LaBerge collection. |
| © Dan & Diana Weinrich Minerals | Photo ID: 236209 View Count: 26 |
Lepidolite : K(Li,Al)3(Si,Al)4O10(F,OH)2 | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil Crystals up to 2,5cm in field with 6x6cm - December of 2004 |
| © Martins da Pedra | Photo ID: 53564 View Count: 316 |
Lepidolite : K(Li,Al)3(Si,Al)4O10(F,OH)2 | |
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Morro Redondo mine, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil Field of view 25x35 mm. Rui Nunes specimen and photo. |
| © Rui Nunes 2006 | Photo ID: 47914 View Count: 284 |
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