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
3.65-4.554.28-4.42
1
7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
1.6 Cleavage
None, but may exhibit slight parting
Distinct on [010] and [100] poor on [101]
1.7 Mohs Hardness
1.8 Chemical Composition
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)