Chlorastrolite and Smoky Quartz Physical Properties

Chlorastrolite

Smoky Quartz

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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

3.1-3.52.65

1 7.18

1.5 Fracture

Granular

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

{0110} Indistinct

1.7 Mohs Hardness

5-67

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)

SiO₂

Chlorastrolite and Smoky Quartz Chemical Formula

While comparing Chlorastrolite and Smoky Quartz 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 Smoky Quartz 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 Smoky Quartz- SiO₂

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Chlorastrolite and Smoky Quartz Specific Gravity

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