Sardonyx and Zoisite Physical Properties

Sardonyx

Zoisite

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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

2.55-2.703.20-3.50

1 7.18

1.5 Fracture

Not Available

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even

1.6 Cleavage

Not Available

Perfect {010} imperfect {100}

1.7 Mohs Hardness

6.5-76-7

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

Ca₂Al₃(SiO₄)₃(OH)

Sardonyx and Zoisite Chemical Formula

While comparing Sardonyx 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 Sardonyx and Zoisite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)

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Sardonyx and Zoisite Specific Gravity

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