Austinite and Ruby Physical Properties

Austinite

Ruby

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Easily soluble in cold dilute HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.123.97-4.05

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

Conchoidal

1.6 Cleavage

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

No true cleavage

1.7 Mohs Hardness

4-4.59

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

Al ₂ O ₃

Austinite and Ruby Chemical Formula

While comparing Austinite and Ruby 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 Ruby chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Ruby- Al ₂ O ₃

Compare Green Gemstones

Austinite Vs Apophyllite KF

Austinite Vs Cordierite

Austinite Vs Clintonite

Austinite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.