1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.5 Durability
Not Available
Not Available
1.8 Specific Gravity
2.80-2.901.98-2.50
1
7.18
1.13 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Conchoidal, Conchoidal, Gemstones of the world (2001)
1.14 Cleavage
{001} perfect
Not Available
1.15 Mohs Hardness
1.16 Chemical Composition
Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)