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
2.90-3.102.55-2.63
1
7.18
1.5 Fracture
Splintery, Granular, Splintery, Granular, Gemstones (2009)
Uneven, Uneven, Gems
1.6 Cleavage
Not Available
{001} Perfect, {010} Good
1.7 Mohs Hardness
1.8 Chemical Composition
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
KAlSi 3O 8Arthur Thomas , Gemstones (2009)