Gemological Information for Azurite
| Color: | Dark Brown, Light to Dark Green, Yellow & Black |
| Crystal Structure: | Monoclinic |
| Refractive Index: | 1.730 – 1.836 |
| Durability: | 1.730 – 1.836 |
| Hardness: | 6 to 7 |
| Family: | |
| Similar Stones: | Benitoite, Lapis Lazuli, Azurmalachite |
| Treatments: | Wax or Epoxy Impregnation |
| Country of Origin: | U.S., France, Republic of Namibia |
Azurite Care
| Ultrasonic Cleaning: | Never |
| Steam Cleaning: | Never |
| Warm Soapy Water: | Safe - No Abrasives |
| Chemical Attack: | Attacked by Acids |
| Light Sensitivity: | Stable |
| Heat Sensitivity: | Breaks Down |
Further Resources
Gems & Gemology: The Quarterly Journal of The Gemological Institute of America.
Azurite:
- Fall 1960, Azurite and its Absorption Spectrum, p. 71, 1p.