Clinozoisite and Austinite Physical Properties

Clinozoisite

Austinite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.21-3.384.12

1 7.18

1.5 Fracture

Irregular/uneven, Uneven

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Perfect on {001}

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

1.7 Mohs Hardness

6-74-4.5

2 10

1.8 Chemical Composition

Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

CaZn(AsO4)(OH)

Clinozoisite and Austinite Chemical Formula

While comparing Clinozoisite 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 Clinozoisite and Austinite chemical formula.

Chemical formula of Clinozoisite- Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Austinite- CaZn(AsO4)(OH)

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Clinozoisite and Austinite Specific Gravity

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