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Augite : (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] | |
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Malvoissière brook alluvials, Saint-Victor-la-Rivière, Besse-et-Saint-Anastaise, Puy-de-Dôme, Auvergne, France 2,2 mm crystal - Photo and collection François Périnet. |
| © François Périnet | Photo ID: 142272 View Count: 168 |
Hematite : Fe2O3 | |
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Malvoissière brook alluvials, Saint-Victor-la-Rivière, Besse-et-Saint-Anastaise, Puy-de-Dôme, Auvergne, France 1 mm crystal - Photo and collection François Périnet. |
| © François Périnet | Photo ID: 142274 View Count: 170 |
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Malvoissière brook alluvials, Saint-Victor-la-Rivière, Besse-et-Saint-Anastaise, Puy-de-Dôme, Auvergne, France 0,4 mm crystal - Photo and collection François Périnet. |
| © François Périnet | Photo ID: 217176 View Count: 29 |
Magnetite : Fe2+Fe3+2O4 | |
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Malvoissière brook alluvials, Saint-Victor-la-Rivière, Besse-et-Saint-Anastaise, Puy-de-Dôme, Auvergne, France 1,4 mm grain - Photo and collection François Périnet. |
| © François Périnet | Photo ID: 142271 View Count: 163 |
Olivine : (Mg,Fe2+)2[SiO4] | |
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Malvoissière brook alluvials, Saint-Victor-la-Rivière, Besse-et-Saint-Anastaise, Puy-de-Dôme, Auvergne, France 1,2 mm crystal - Photo and collection François Périnet. |
| © François Périnet | Photo ID: 142273 View Count: 202 |
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