Dioptase and Austinite Physical Properties
Solubility
Soluble
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
3.25-3.35
4.12
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Brittle, Uneven, Brittle, Uneven
Cleavage
Perfect in three directions
Good in two directions parallel to the prism faces {110}
Chemical Composition
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)
Dioptase and Austinite Chemical Formula
While comparing Dioptase 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 Dioptase and Austinite chemical formula.
- Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Dioptase and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dioptase and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dioptase and Austinite Optical Properties during the identification of gemstone. Specific gravity of Dioptase is 4.12 whereas that of Austinite is 4.12.