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
Not Available3.40-3.58
1
7.18
1.5 Fracture
Sub-Conchoidal, Splintery
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven
1.6 Cleavage
{201} Imperfect, {100} Poor, {001} Poor
{010} Perfect
1.7 Mohs Hardness
1.8 Chemical Composition
Not Available
(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references