mineral
Malachite
Malachite, Cu2CO3(OH)2
AI-generated identification · may be incorrectHardness: 3.5-4.0 (Mohs), Color: Bright green with layered banding, Luster: Adamantine to vitreous (silky when fibrous), Crystal structure: Monoclinic, Cleavage: Perfect in one direction, Specific gravity: 3.6-4.0
- Hardness
- 3
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Physical properties
Hardness: 3.5-4.0 (Mohs), Color: Bright green with layered banding, Luster: Adamantine to vitreous (silky when fibrous), Crystal structure: Monoclinic, Cleavage: Perfect in one direction, Specific gravity: 3.6-4.0
Formation & geological history
Formed in the oxidized zone of copper deposits where carbonated water reacts with copper minerals; often found in limestone environments.
Uses & applications
Commonly used in jewelry as cabochons, decorative carvings, copper ore, and historically as a pigment.
Geological facts
In ancient Egypt, malachite was used as a cosmetic (eyeshadow) and for talismans; it is frequently found associated with Azurite.
Field identification & locations
Identified by its distinctive vibrant green concentric bands; commonly found in the Democratic Republic of the Congo, Russia, Australia, and Arizona, USA.
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Sandstone (with potential mineral staining/concretions)
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Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
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Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
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Granite
Granite (Phaneritic intrusive igneous rock)
igneous