> Minerals
|
Sapphire
|
| Sapphire
Andranondambo, Maromby Commune, Amboasary Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagaskar
Item-No.: 3606 Price: 91.00 EUR
|
Synonyms: |
Azulinhas, Bengal Amethyst, Hyacinthos, Salamstein, Ultralite |
Variety of: |
Corundum |
Classification: |
Oxides |
Chemical formula: |
Al2O3 |
Crystal system: |
Trigonal |
Density (g/cm3): |
3.98 - 4.1 measured, 3.997 calculated |
Tenacity: |
Brittle |
Cleavage: |
None observed |
Fracture: |
Irregular, uneven, conchoidal |
Hardness (Mohs): |
9 |
Colour: |
Colourless, blue, pink, yellow, grey, golden-brown |
Lustre: |
Adamantine, vitreous, pearly |
Streak: |
White |
Transparency: |
Transparent, translucent, opaque |
Application: |
Gemstone and abrasive |
|