Sard and Shigaite Physical Properties

Sard

Shigaite

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1 Physical Properties

1.1 Tenacity

Not Available

Moderately ﬂexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.632.32

1 7.18

1.5 Fracture

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

Flexible Flexible fragments.

1.6 Cleavage

Not Available

Perfect on {0001}

1.7 Mohs Hardness

6.5-72

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

Not Available

Sard and Shigaite Chemical Formula

While comparing Sard and Shigaite 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 Shigaite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.

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Sard and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Sard is 2.32 whereas that of Shigaite is 2.32.