Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.00-5.302.55-2.63
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Uneven
Cleavage
None, may show partings on {0001} and {10 1 1}
{001} Perfect, {010} Good
Mohs Hardness
66-6.5
2
10
👆🏻
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
KAlSi 3O 8Arthur Thomas , Gemstones (2009)