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
4.12-4.183.65-4.55
1
7.18
1.5 Fracture
ConchoidalArthur Thomas, Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
{???} Distinct
None, but may exhibit slight parting
1.7 Mohs Hardness
1.8 Chemical Composition
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)