Amethyst - El Choique mine, Neuquén Province, Argentina
Amethyst
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Source volume: 51, issue: 2, PDF page: 31. Label: Figure 16 (right). Pink amethyst crystals lining a geode, 4 cm, from the El Choique mine. Silvia Abad photo.
El Choique, Argentina - Patagonian locality famed for pink amethyst geodes in late Cretaceous anhydrite, with quartz and calcite, sought by serious collectors.
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