Brookite and Austinite Physical Properties

Brookite

Austinite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.144.12

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Poor on {120}, in traces on {001}

Good in two directions parallel to the prism faces {110}

1.7 Mohs Hardness

5.5-64-4.5

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaZn(AsO4)(OH)

Brookite and Austinite Chemical Formula

While comparing Brookite 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 Brookite and Austinite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Austinite- CaZn(AsO4)(OH)

Compare Red Gemstones

Brookite Vs Ceylonite

Brookite Vs Chabazite

Brookite Vs Chambersite

Brookite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 4.12 whereas that of Austinite is 4.12.