Tenacity
Slightly sectile
-
Solubility
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
insoluble in water
Durability
-
-
Specific Gravity
22.51-2.63
1
7.18
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Fracture
Uneven
Fibrous
Cleavage
Prismatic {10 1 0}, perfect
Perfect basal
Mohs Hardness
2-2.52.5-4.5
2
10
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Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)