Austinite and Cordierite Physical Properties

Austinite

Cordierite

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1 Physical Properties

1.1 Tenacity

Brittle

1.3 Solubility

Easily soluble in cold dilute HCl

Not Available

1.6 Durability

Not Available

1.2 Specific Gravity

4.122.57-2.66

1 7.18

1.13 Fracture

Brittle, Uneven, Brittle, Uneven

Subconchoidal, Conchoidal, Brittle

1.14 Cleavage

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

Fair on {100}, poor on {001} and {010}

1.15 Mohs Hardness

4-4.57-7.5

2 10

1.18 Chemical Composition

CaZn(AsO4)(OH)

Mg2Al4Si5O18

Austinite and Cordierite Chemical Formula

While comparing Austinite and Cordierite 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 Cordierite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Green Gemstones

Austinite Vs Clintonite

Austinite Vs Cordierite

Austinite Vs Apophyllite KF

Austinite and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.