AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Brazil > Calcite and Amethyst

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Calcite and Amethyst from Irai, Rio Grande do Sul, Brazil

 
Calcite and Amethyst from Irai, Rio Grande do Sul, Brazil

Photo below under shortwave ultraviolet illumination:
Calcite and Amethyst from Irai, Rio Grande do Sul, Brazil

DESCRIPTION:No. 21749
Mineral:Calcite and Amethyst
Locality:Irai, Rio Grande do Sul, Brazil
Description:Sculptural formation of purple-gray amethyst quartz crystals up to 25 mm with colorless calcite crystals up to 9 mm. The calcite fluoresces red-orange under UV illumination. All are grown on matrix of green nontronite.
Overall Size:8x6x5 cm
Crystals:1-25 mm
Status: Sold - Posted here for reference only
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