1 Physical Properties
1.1 Tenacity
2.3 Solubility
Not Available
Not Available
2.5 Durability
Not Available
Not Available
2.7 Specific Gravity
5.00-5.303.65-4.55
1
7.18
2.11 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009)
2.12 Cleavage
None, may show partings on {0001} and {10 1 1}
None, but may exhibit slight parting
2.13 Mohs Hardness
3.4 Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)