Sard and Rock Crystal Physical Properties

Sard

Rock Crystal

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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

2.65

1.5 Fracture

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

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

SiO 2Walter Schumann , Gemstones of the world (2001)

Sard and Rock Crystal Chemical Formula

While comparing Sard and Rock Crystal 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 Rock Crystal chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

Compare Blue Gemstones

Sard Vs Sodalite

Sard Vs Spinel

Sard Vs Sillimanite

Sard and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Sard is 2.65 whereas that of Rock Crystal is 2.65.