Chlorastrolite and Chrome-Chalcedony Physical Properties

Chlorastrolite

Chrome-Chalcedony

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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

3.1-3.52.55-2.70

1 7.18

1.5 Fracture

Granular

Not Available

1.6 Cleavage

Not Available

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)

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Chlorastrolite and Chrome-Chalcedony Chemical Formula

While comparing Chlorastrolite and Chrome-Chalcedony 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 Chrome-Chalcedony 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 Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Chlorastrolite and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chlorastrolite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorastrolite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Chlorastrolite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.