Austinite and Cobaltite Physical Properties

Austinite

Cobaltite

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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

4.126.3

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.6 Cleavage

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

{100} Good, {010} Good, {001} Good

1.7 Mohs Hardness

4-4.55.5

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

CoAsSAnthony et al , Handbook of mineralogy (2001)

Austinite and Cobaltite Chemical Formula

While comparing Austinite and Cobaltite 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 Cobaltite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

Austinite Vs Cordierite

Austinite Vs Apophyllite KF

Austinite Vs Clintonite

Austinite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 6.3 whereas that of Cobaltite is 6.3.