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
ConchoidalGemdat.org, Uneven
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
1.6 Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
None, may show partings on {0001} and {10 1 1}
1.7 Mohs Hardness
1.8 Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Fe 2O 3Arthur Thomas , Gemstones (2009)