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Siderite (greenish), dolomite (white), quartz and pyrrhotite (golden)
Morro Velho mine, Nova Lima, Iron Quadrangle, Minas Gerais, Brazil
11 x 10 x 8 cm (Author: Anísio Cláudio)
| Dimensions: | 750 x 685 |
| File size: | 52.26 kbytes |
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