1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Handbook of mineralogy (2001)
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
1.6 Cleavage
None
Perfect on {100}, imperfect on {001}
1.7 Mohs Hardness
1.8 Chemical Composition
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)