Chlorastrolite and Albite Physical Properties

Chlorastrolite

Albite

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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

3.1-3.52.60-2.65

1 7.18

1.5 Fracture

Granular

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

5-66-6.5

2 10

1.8 Chemical Composition

Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)

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

Chlorastrolite and Albite Chemical Formula

While comparing Chlorastrolite 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 Chlorastrolite and Albite chemical formula.

Chemical formula of Chlorastrolite- Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Chlorastrolite and Albite Specific Gravity

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