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Chalcedony, Quartz (Var: Amethyst) : SiO2 | |
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Wanda mines, Misiones, Argentina 7 x 5 cm. geode of Chalcedony and pale amethyst. |
| © Marcelo O. Olsina | Photo ID: 15004 View Count: 410 |
Quartz : SiO2 | |
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Wanda mines, Misiones, Argentina Specimen size: 2.9 x 1.7 cm. Some needle-shaped crystals of red Rutile. |
| © JCLodovichi | Photo ID: 21956 View Count: 414 |
Quartz : SiO2 | |
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Wanda mines, Misiones, Argentina 5 x 4 cm. |
| © Marcelo O. Olsina | Photo ID: 14908 View Count: 367 |
Quartz : SiO2 | |
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Wanda mines, Misiones, Argentina 15 z 15 cm. |
| © Marcelo O. Olsina | Photo ID: 16144 View Count: 345 |
Quartz (Var: Amethyst) : SiO2 | |
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Wanda mines, Misiones, Argentina 18.5 x 10 cm. |
| © Marcelo O Olsina | Photo ID: 14999 View Count: 861 |
Quartz (Var: Amethyst) : SiO2 | |
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Wanda mines, Misiones, Argentina 8 x 6.5 cm. |
| © Marcelo O. Olsina | Photo ID: 14855 View Count: 601 |
Quartz (Var: Amethyst) : SiO2 | |
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Wanda mines, Misiones, Argentina 9 x 6 cm. pale amethyst all covered with macles. |
| © Marcelo O. Olsina | Photo ID: 15008 View Count: 527 |
Quartz (Var: Amethyst) : SiO2 | |
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Wanda mines, Misiones, Argentina Deep violet amethyst group. Overall size:108*49*42mm |
| © Tamás Ungvári 2005 | Photo ID: 30922 View Count: 445 |
Quartz (Var: Citrine) : SiO2 | |
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Wanda mines, Misiones, Argentina 11 x 8 cm. |
| © Marcelo O. Olsina | Photo ID: 14857 View Count: 541 |
Quartz (Var: Citrine) : SiO2 | |
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Wanda mines, Misiones, Argentina 11 x 5 cm. |
| © Marcelo O. Olsina | Photo ID: 14858 View Count: 451 |
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