Nuummite and Austinite Physical Properties

Nuummite

Austinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.18-3.374.12

1 7.18

1.5 Fracture

Conchoidal

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Perfect on 210

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

Not Available

CaZn(AsO4)(OH)

Nuummite and Austinite Chemical Formula

While comparing Nuummite 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 Nuummite and Austinite chemical formula.

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

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Nuummite and Austinite Specific Gravity

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