Sard and Realgar Physical Properties

Sard

Realgar

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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

2.58-2.633.56

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

Not Available

{010} Good

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Sard and Realgar Chemical Formula

While comparing Sard and Realgar 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 Realgar chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Sard Vs Spinel

Sard Vs Sillimanite

Sard Vs Sodalite

Sard and Realgar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Realgar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Realgar Optical Properties during the identification of gemstone. Specific gravity of Sard is 3.56 whereas that of Realgar is 3.56.