1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Not Available
1.6 Cleavage
None, may show partings on {0001} and {10 1 1}
Not Available
1.7 Mohs Hardness
1.8 Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)