Austinite and Charoite Physical Properties

Austinite

Charoite

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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

4.122.54-2.78

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Good in three directions

1.7 Mohs Hardness

4-4.55-6

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Austinite and Charoite Chemical Formula

While comparing Austinite and Charoite 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 Charoite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Austinite and Charoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Charoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Charoite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.54-2.78 whereas that of Charoite is 2.54-2.78.