Chrome-Chalcedony and Zoisite Physical Properties

Chrome-Chalcedony

Zoisite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.55-2.703.20-3.50

1 7.18

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Fracture

Uneven, Conchoidal, Even

Cleavage

None

Perfect {010} imperfect {100}

Mohs Hardness

6.5-76-7

2 10

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Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Chrome-Chalcedony and Zoisite Chemical Formula

While comparing Chrome-Chalcedony and Zoisite 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 Chrome-Chalcedony and Zoisite chemical formula.

Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)

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Chrome-Chalcedony and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.