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AMETHYST QUARTZ<br />
Purple variety of SiO2<br />
A variety of quartz with violet to lavender color, which is caused by the presence of compounds of iron or manganese.

Fphoto-69619302B-6CC.jpg

AMETHYST QUARTZ
Purple variety of SiO2
A variety of quartz with violet to lavender color, which is caused by the presence of compounds of iron or manganese.

Copyright:© 1993 Chip Clark - Fundamental Photographs

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