Austinite and Calcite Physical Properties

Austinite

Calcite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Easily soluble in cold dilute HCl

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.122.67-2.73

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

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

1.6 Cleavage

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

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

4-4.53

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

CaCO 3Ulrich Henn and Claudio C.

Austinite and Calcite Chemical Formula

While comparing Austinite and Calcite 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 Calcite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

Compare Green Gemstones

Austinite Vs Apophyllite KF

Austinite Vs Cordierite

Austinite Vs Clintonite

Austinite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.