Chlorastrolite and Carnelian Physical Properties

Chlorastrolite

Carnelian

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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

3.1-3.52.58-2.64

1 7.18

1.5 Fracture

Granular

Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

Absent

1.7 Mohs Hardness

5-66.5-7

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 Carnelian Chemical Formula

While comparing Chlorastrolite and Carnelian 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 Carnelian 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 Carnelian- SiO₂

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Chlorastrolite and Carnelian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chlorastrolite and Carnelian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorastrolite and Carnelian Optical Properties during the identification of gemstone. Specific gravity of Chlorastrolite is 2.58-2.64 whereas that of Carnelian is 2.58-2.64.