Austinite and Periclase Physical Properties

Austinite

Periclase

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Physical Properties

Tenacity

Brittle

Solubility

Easily soluble in cold dilute HCl

Durability

Specific Gravity

4.123.7-3.9

1 7.18

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Fracture

Uneven

Conchoidal

Cleavage

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

{001} perfect; {111} imperfect, may exhibit parting on , {011}

Mohs Hardness

4-4.55.5-6

2 10

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Chemical Composition

CaZn(AsO4)(OH)

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Austinite and Periclase Chemical Formula

While comparing Austinite and Periclase 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 Periclase chemical formula.

Chemical formula of Austinite- CaZn(AsO4)(OH)
Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

Austinite Vs Apophyllite KF

Austinite Vs Gaspeite

Austinite Vs Gyrolite

Austinite and Periclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Austinite and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Periclase Optical Properties during the identification of gemstone. Specific gravity of Austinite is 3.7-3.9 whereas that of Periclase is 3.7-3.9.