Caledonite and Villiaumite Physical Properties

Caledonite

Villiaumite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.6-5.762.79

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

[001] perfect; [100] distinct

{100} Perfect, {010} Perfect, {001} Perfect

1.7 Mohs Hardness

2.5-32

2 10

1.8 Chemical Composition

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

NaFUlrich Henn and Claudio C.

Caledonite and Villiaumite Chemical Formula

While comparing Caledonite and Villiaumite 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 Caledonite and Villiaumite chemical formula.

Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.

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Caledonite and Villiaumite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Villiaumite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Villiaumite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 2.79 whereas that of Villiaumite is 2.79.