Sardonyx and Zincite Physical Properties

Sardonyx

Zincite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.705.50-5.90

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Not Available

On {10 1 0}, perfect; parting on {000 1 }

1.7 Mohs Hardness

6.5-74

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Sardonyx and Zincite Chemical Formula

While comparing Sardonyx and Zincite 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 Zincite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Sardonyx and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Zincite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 5.50-5.90 whereas that of Zincite is 5.50-5.90.