Realgar and Prase Opal Physical Properties

Realgar

Prase Opal

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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

3.561.98-2.25

1 7.18

1.5 Fracture

(e.g. graphite).

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

1.6 Cleavage

{010} Good

Not Available

1.7 Mohs Hardness

Not Available5-6.5

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

SiO 2 + H 2OUlrich Henn and Claudio C.

Realgar and Prase Opal Chemical Formula

While comparing Realgar and Prase Opal 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 Prase Opal chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Realgar and Prase Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Prase Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Prase Opal Optical Properties during the identification of gemstone. Specific gravity of Realgar is 1.98-2.25 whereas that of Prase Opal is 1.98-2.25.