1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.5 Fracture
Gems, Uneven
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
2.6 Cleavage
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
Distinct on {001} and {110}, indistinct on {100}
2.7 Mohs Hardness
3.4 Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references