Quartz (variety Amethyst), red Calcite
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Quartz (variety amethyst) doubly terminated crystal with red calcite, 14 cm (the center crystal measures 6.4 cm), from the Tonglushan mine, Daye County, Hubei, China. Roberto Appiani photo.
Product details
Species
SizeMuseum
Dimensions1400.0 cm
Added on02/13/2026
Locality
Publications
- Mineralogical Record Private Mineral Collections In Italy page 88
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Mineral guide
Learn about Amethyst
violet quartz prized for vivid color and crystal forms; affordable Brazilian geodes and razor-sharp Georgia crystals, with collecting localities.Regional guide

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