1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.98-3.035.90-6.10
1
7.18
1.5 Fracture
Uneven
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
1.6 Cleavage
[110] perfect; [010] distinct
{110} Distinct, {001} Indistinct, {100} Indistinct
1.7 Mohs Hardness
1.8 Chemical Composition
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references