1 Physical Properties
2.3 Tenacity
2.4 Solubility
2.7 Durability
Not Available
Not Available
2.11 Specific Gravity
1.5 Fracture
Uneven
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
1.7 Cleavage
{010} Perfect, {210} Perfect, {010} Imperfect
{100} imperfect, {110} indistinct; partings on {111} or {011}
1.10 Mohs Hardness
1.17 Chemical Composition
BaSO4
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references