1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
ConchoidalGemdat.org, Uneven
1.6 Cleavage
(0001) indistinct
{111} Indistinct, {111} Indistinct, {111} Indistinct
1.7 Mohs Hardness
1.8 Chemical Composition
SiCArthur Thomas , Gemstones (2009)
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)