1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
1.2 Durability
Not Available
Not Available
1.4 Specific Gravity
1.15 Fracture
Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.16 Cleavage
1.17 Mohs Hardness
1.18 Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references