Piemontite and Caledonite Physical Properties

Piemontite

Caledonite

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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

Not Available5.6-5.76

1 7.18

1.5 Fracture

Uneven, Splintery

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

1.6 Cleavage

[001] good, [100] distinct

[001] perfect; [100] distinct

1.7 Mohs Hardness

6-6.52.5-3

2 10

1.8 Chemical Composition

Not Available

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

Piemontite and Caledonite Chemical Formula

While comparing Piemontite 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 Piemontite 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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Piemontite and Caledonite Specific Gravity

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