Austinite and Scapolite Physical Properties
Solubility
Easily soluble in cold dilute HCl
-
Specific Gravity
4.12
2.58-2.74
Fracture
Uneven
ConchoidalWalter Schumann, Splintery
Cleavage
Good in two directions parallel to the prism faces {110}
{100} Distinct, {110} Distinct
Mohs Hardness
4-4.5
5.5-6
Chemical Composition
CaZn(AsO4)(OH)
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Austinite and Scapolite Chemical Formula
While comparing Austinite and Scapolite 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 Austinite and Scapolite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Austinite and Scapolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.