AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Brazil > Quartz var. Amethyst pseudomorph after Aragonite with Calcite |
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DESCRIPTION: | No. 23 |
Mineral: | Quartz var. Amethyst pseudomorph after Aragonite with Calcite |
Locality: | Alto Uruguai, Rio Grande do Sul, Brazil |
Description: | Lustrous translucent purple amethyst quartz pseudomorph after an 80 mm hexagonal aragonite crystal with minor tan calcite crystals to 8 mm. The aragonite formed first, then amethyst crystals to 20 mm grew on the surfaces, then the aragonite dissolved. Ex. Mel Pollinger collection #1653; originally acquired from Lambert Minerals |
Overall Size: | 11x9.5x8 cm |
Crystals: | 80 mm pseudo |
Archived: | For reference only |
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