Realgar and Caledonite Physical Properties

Realgar

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

3.565.6-5.76

1 7.18

1.5 Fracture

(e.g. graphite).

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

1.6 Cleavage

{010} Good

[001] perfect; [100] distinct

1.7 Mohs Hardness

Not Available2.5-3

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Realgar and Caledonite Chemical Formula

While comparing Realgar 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 Realgar and Caledonite chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

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Realgar and Caledonite Specific Gravity

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