Sard and Apophyllite Physical Properties

Sard

Apophyllite

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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

2.58-2.63

2.30-2.50

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

Perfect on (001)

1.7 Mohs Hardness

6.5-7

4.5-5

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Sard and Apophyllite Chemical Formula

While comparing Sard and Apophyllite 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 Sard and Apophyllite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

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Sard Vs Sodalite

Sard and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Sard is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.