Austinite and Dallasite Physical Properties

Austinite

Dallasite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Easily soluble in cold dilute HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.122.58-2.91

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

4-4.56.5-7

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

Not Available

Austinite and Dallasite Chemical Formula

While comparing Austinite and Dallasite 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 Dallasite chemical formula.

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

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Austinite and Dallasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.