Azurite
What is Azurite?
Azurite is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. It’s primarily found in the United States, Australia, and Namibia. Azurite is often used as a gemstone and is popular for its deep blue color and its use in various spiritual practices.
Azurite is a striking gemstone that comes in shades of deep blue. Its unique appearance and color make it a popular choice for jewelry and decorative items, especially beads and pendants.
| Chemical Classification | Inorganic - Carbonate |
| Color | Deep, electric blue to azure blue, often with green malachite inclusions. |
| Streak | White |
| Luster | Vitreous to dull. |
| Transparency | Opaque. |
| Occurrence | Morocco, Arizona (USA), and Namibia. |
| Formation | Typically found in the oxidized portions of copper ore deposits. |
| Diaphaneity | Transparent to translucent |
| Cleavage | None |
| Mohs Hardness | 3.5 to 4 |
| Specific Gravity | 3.77 - 3.89 |
| Diagnostic Properties | Intense blue color. |
| Chemical Composition | Cu3(CO3)2(OH)2 |
| Pleochroism | Not observed in azurite. |
| Crystal System | Monoclinic |
| Optical Properties | Biaxial (+) |
| Refractive Index | 1.730 - 1.838 |
| Birefringence | 0.02 |
| 2V angle | Measured: 58° |
| Dispersion | Not typically noted for its dispersion. |