Realgar and Grossular Physical Properties

Realgar

Grossular

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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

3.563.55-3.73

1 7.18

1.5 Fracture

(e.g. graphite).

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

{010} Good

none

1.7 Mohs Hardness

Not Available7-7.5

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Realgar and Grossular Chemical Formula

While comparing Realgar and Grossular 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 Realgar and Grossular chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Realgar and Grossular Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Grossular Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Grossular Optical Properties during the identification of gemstone. Specific gravity of Realgar is 3.55-3.73 whereas that of Grossular is 3.55-3.73.