Chlorastrolite and Almandine Physical Properties

Chlorastrolite

Almandine

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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

3.1-3.53.95-4.30

1 7.18

1.5 Fracture

Granular

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Not Available

none

1.7 Mohs Hardness

5-67-7.5

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)

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Chlorastrolite and Almandine Chemical Formula

While comparing Chlorastrolite and Almandine 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 Almandine 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 Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Chlorastrolite and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chlorastrolite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorastrolite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Chlorastrolite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.