1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.65-4.552.08-2.16
1
7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Irregular/uneven, UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
None, but may exhibit slight parting
distinct/good on {1011}
1.7 Mohs Hardness
1.8 Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
CaAl 2Si 4O 12 -6H 2OArthur Thomas , Gemstones (2009)