Gemstone | Crystal System | Density | Hardness | Refractive index | Treatments |
Achroite | trigonal | 3.06 | 7.0-7.5 | 1.624-1.644 | none known |
Faceted Achroite Courtesy of Nicky Newark
Localities: |
Achroite
|
Gemstone | Crystal System | Density | Hardness | Refractive index | Treatments |
Achroite | trigonal | 3.06 | 7.0-7.5 | 1.624-1.644 | none known |
Faceted Achroite Courtesy of Nicky Newark
Localities: |
Achroite
|