Plumbogummite and Austinite Physical Properties

Plumbogummite

Austinite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

4.0144.12

1 7.18

1.5 Fracture

Uneven, Conchoidal

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

None

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

1.7 Mohs Hardness

4-54-4.5

2 10

1.8 Chemical Composition

Not Available

CaZn(AsO4)(OH)

Plumbogummite and Austinite Chemical Formula

While comparing Plumbogummite 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 Plumbogummite and Austinite chemical formula.

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

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Plumbogummite and Austinite Specific Gravity

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