Tenacity
Sectile
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.395.00-5.30
1
7.18
👆🏻
Fracture
Irregular
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Perfect on {0001}
None, may show partings on {0001} and {10 1 1}
Mohs Hardness
2.56
2
10
👆🏻
Chemical Composition
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Fe 2O 3Arthur Thomas , Gemstones (2009)