What is Covellite?
Covellite is a rare copper sulfide mineral that is often found in the United States, Italy, and Germany. It’s primarily used as a gemstone and is popular for its deep indigo-blue color.
Covellite is a striking gemstone that comes in shades of deep indigo-blue. Its unique appearance and color make it a popular choice for jewelry and decorative items, especially beads and pendants.
|Chemical Classification||Inorganic - Sulfide|
|Color||Deep blue to indigo with a metallic luster.|
|Occurrence||Italy (especially from the Mount Vesuvius area), the USA (Montana), and Peru.|
|Formation||Covellite forms in hydrothermal veins and as a secondary mineral in copper ore deposits.|
|Diaphaneity||Transparent to translucent|
|Mohs Hardness||1.5 - 2.|
|Specific Gravity||Approximately 4.6 - 4.8.|
|Diagnostic Properties||Indigo-blue, metallic luster.|
|Pleochroism||Not observed due to its opacity.|
|Optical Properties||Biaxial (-)|
|Refractive Index||1.450 - 1.708|
|2V angle||Measured: 68°|
|Dispersion||Not applicable due to its opacity.|