Powellite and Austinite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
4.23
4.12
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Brittle, Uneven, Brittle, Uneven
Cleavage
{111} Distinct
Good in two directions parallel to the prism faces {110}
Mohs Hardness
3.5-4
4-4.5
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
CaZn(AsO4)(OH)
Powellite and Austinite Chemical Formula
While comparing Powellite 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 Powellite and Austinite chemical formula.
- Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Powellite and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Powellite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Powellite is 4.12 whereas that of Austinite is 4.12.