Malachite is a copper carbonate hydroxide. The green bands are growth layers. It is soft, so it is used for cabochons, inlay, and carvings rather than rings that take knocks.
This page is only for Malachite. Comments below are for this material.
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Malachite
Specimen Details
- Hardness (Mohs): 3.5–4
- Chemical Formula: Cu2CO3(OH)2
- Crystal System: Monoclinic
- Size: Specimen size varies; record the piece, not the species