Vishnevite and Caledonite Physical Properties

Vishnevite

Caledonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available5.6-5.76

1 7.18

1.5 Fracture

Brittle, Uneven

Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

Perfect

[001] perfect; [100] distinct

1.7 Mohs Hardness

5-62.5-3

2 10

1.8 Chemical Composition

Not Available

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Vishnevite and Caledonite Chemical Formula

While comparing Vishnevite and Caledonite 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 Vishnevite and Caledonite chemical formula.

Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

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Vishnevite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vishnevite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.