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Goethite : α-Fe3+O(OH) | |
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Andrelândia, Minas Gerais, Southeast Region, Brazil Goethite after almandine. Crystal size: 3,0 x 2,5 cm |
| © Bráulio | Photo ID: 48872 View Count: 275 |
Muscovite : KAl2[(OH)2|AlSi3O10] | |
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Andrelândia, Minas Gerais, Southeast Region, Brazil Approx, size 6 x 7 x 5 cm |
| Photo ID: 220167 View Count: 35 | |
Tourmaline : AD3G6(BO3)3[T6O18]Y3Z, Albite (Var: Cleavelandite) : Na[AlSi3O8] | |
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Andrelândia, Minas Gerais, Southeast Region, Brazil Approx, size 6 x 5,5 x 3 cm |
| © Nuno Miguel Santos | Photo ID: 220531 View Count: 33 |
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