Mimetite and Austinite Physical Properties
Solubility
Not Available
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
7.10
4.12
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Brittle, Uneven, Brittle, Uneven
Cleavage
[10 1 1] Imperfect
Good in two directions parallel to the prism faces {110}
Chemical Composition
Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)
Mimetite and Austinite Chemical Formula
While comparing Mimetite and Austinite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Mimetite and Austinite chemical formula.
- Chemical formula of Mimetite- Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Mimetite and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Mimetite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mimetite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Mimetite is 4.12 whereas that of Austinite is 4.12.