Austinite and Nuummite Physical Properties

Austinite

Nuummite

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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

4.123.18-3.37

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

Conchoidal

1.6 Cleavage

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

Perfect on 210

1.7 Mohs Hardness

4-4.55.5-6

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

Not Available

Austinite and Nuummite Chemical Formula

While comparing Austinite and Nuummite 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 Nuummite chemical formula.

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

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Austinite Vs Clintonite

Austinite Vs Cordierite

Austinite and Nuummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Nuummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Nuummite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.18-3.37 whereas that of Nuummite is 3.18-3.37.