Realgar and Peridot Physical Properties

Realgar

Peridot

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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

3.561.54-1.55

1 7.18

1.5 Fracture

(e.g. graphite).

Conchoidal

1.6 Cleavage

{010} Good

Poor

1.7 Mohs Hardness

Not Available6.5-7

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

(Mg,Fe)₂SiO₄

Realgar and Peridot Chemical Formula

While comparing Realgar and Peridot 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 Peridot chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Realgar and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Peridot Optical Properties during the identification of gemstone. Specific gravity of Realgar is 1.54-1.55 whereas that of Peridot is 1.54-1.55.