Thulite and Chlorastrolite Physical Properties

Thulite

Chlorastrolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.13.1-3.5

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Granular

1.6 Cleavage

Perfect {010} imperfect {100}

Not Available

1.7 Mohs Hardness

6-75-6

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Thulite and Chlorastrolite Chemical Formula

While comparing Thulite and Chlorastrolite 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 Thulite and Chlorastrolite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Chlorastrolite- Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)

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Thulite and Chlorastrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Chlorastrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Chlorastrolite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 3.1-3.5 whereas that of Chlorastrolite is 3.1-3.5.