Austinite and Aragonite Physical Properties

Austinite

Aragonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Easily soluble in cold dilute HCl

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

4.122.93-2.96

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

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

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

4-4.53.5-4

2 10

1.8 Chemical Composition

CaZn(AsO4)(OH)

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Austinite and Aragonite Chemical Formula

While comparing Austinite and Aragonite 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 Aragonite chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Austinite Vs Cordierite

Austinite Vs Apophyllite KF

Austinite Vs Clintonite

Austinite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.