1 Physical Properties
1.1 Tenacity
Slightly sectile
Not Available
1.2 Solubility
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Prismatic {10 1 0}, perfect
Good on {100}
1.7 Mohs Hardness
1.8 Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references