Chrysoprase and Chrome-Chalcedony Physical Properties

Chrysoprase

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

2.58-2.642.55-2.70

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

Not Available

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

6.5-76.5-7

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

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

Chrysoprase and Chrome-Chalcedony Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Chrome-Chalcedony chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Chrysoprase and Chrome-Chalcedony Specific Gravity

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