Caledonite and Charlesite Physical Properties

Caledonite

Charlesite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.6-5.761.79

1 7.18

1.5 Fracture

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

Irregular/uneven, Brittle, Metallic

1.6 Cleavage

[001] perfect; [100] distinct

Perfect on {10bar10}

1.7 Mohs Hardness

2.5-32.5

2 10

1.8 Chemical Composition

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

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Caledonite and Charlesite Chemical Formula

While comparing Caledonite and Charlesite 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 Charlesite 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 Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

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Caledonite and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 1.79 whereas that of Charlesite is 1.79.