1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.15-3.213.76-3.77
1
7.18
1.5 Fracture
Uneven, Subconchoidal, Gemstones (2009)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
{110} Perfect, {110} Perfect
1.7 Mohs Hardness
1.8 Chemical Composition
LiAlSi2O6
(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.