Bertrandite and Caledonite Physical Properties

Bertrandite

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

2.59-2.605.6-5.76

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

{001} Perfect, {110} Distinct, {101} Distinct

[001] perfect; [100] distinct

1.7 Mohs Hardness

6-72.5-3

2 10

1.8 Chemical Composition

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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

Bertrandite and Caledonite Chemical Formula

While comparing Bertrandite 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 Bertrandite and Caledonite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

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Bertrandite and Caledonite Specific Gravity

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