Crocoite and Austinite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
5.90-6.10
4.12
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Brittle, Uneven, Brittle, Uneven
Cleavage
{110} Distinct, {001} Indistinct, {100} Indistinct
Good in two directions parallel to the prism faces {110}
Mohs Hardness
2.5-3
4-4.5
Chemical Composition
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaZn(AsO4)(OH)
Crocoite and Austinite Chemical Formula
While comparing Crocoite 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 Crocoite and Austinite chemical formula.
- Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Crocoite and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Crocoite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 4.12 whereas that of Austinite is 4.12.