1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.65-4.553.90-4.00
1
7.18
1.7 Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.8 Cleavage
None, but may exhibit slight parting
Perfect on {001}, good on {210}, poor on {010}
1.9 Mohs Hardness
1.13 Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references