Linarite and Austinite Physical Properties

Linarite

Austinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

5.354.12

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Perfect on {100}, imperfect on {001}

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

1.7 Mohs Hardness

2.54-4.5

2 10

1.8 Chemical Composition

PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

CaZn(AsO4)(OH)

Linarite and Austinite Chemical Formula

While comparing Linarite 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 Linarite and Austinite chemical formula.

Chemical formula of Linarite- PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Austinite- CaZn(AsO4)(OH)

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Linarite and Austinite Specific Gravity

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