Cassiterite and Austinite Physical Properties
Solubility
insoluble
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
6.86-7.03
4.12
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Brittle, Uneven, Brittle, Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Good in two directions parallel to the prism faces {110}
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)
Cassiterite and Austinite Chemical Formula
While comparing Cassiterite 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 Cassiterite and Austinite chemical formula.
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Cassiterite and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cassiterite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 4.12 whereas that of Austinite is 4.12.