Malachite
What is Malachite?
Malachite is a copper carbonate hydroxide mineral, often found in the oxidized zones of copper ore deposits. It is known for its vibrant green color and distinctive banded patterns. Malachite is a relatively soft mineral and is often used for ornamental purposes, such as carvings, jewelry, and decorative objects. It has been used since ancient times and is associated with protection and transformation.
Optical Properties
- Refractive Index
- 1.655 - 1.909
- Birefringence
- 0.250
- Pleochroism
- Strong; X = pale yellow-green, Y = dark green, Z = bluish green
- Optical Character
- biaxial (-)
- Dispersion
- 0.044
Malachite Market Value Calculator
Estimate the market value of Malachite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Malachite Localities Map
See where Malachite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
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© Robert M. Lavinsky
Quick Facts
Physical Properties
- Color
- Green, various shades and patterns
- Hardness (Mohs)
- 3.5 - 4
- Density
- 3.6 - 4.0 g/cm³
- Streak
- Light green
Chemical Properties
- Chemical Formula
- Cu2CO3(OH)2
- Elements
- Copper, Carbon, Oxygen, Hydrogen
Also Known As
MalachiteCopper Carbonate Hydroxide
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