Caledonite and Albite Physical Properties

Caledonite

Albite

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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

5.6-5.762.60-2.65

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal

1.6 Cleavage

[001] perfect; [100] distinct

Perfect on {001}, very good on {010}, imperfect on {110}

1.7 Mohs Hardness

2.5-36-6.5

2 10

1.8 Chemical Composition

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

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Caledonite and Albite Chemical Formula

While comparing Caledonite and Albite 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 Albite 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 Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Caledonite and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Albite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 2.60-2.65 whereas that of Albite is 2.60-2.65.