Realgar and Thulite Physical Properties

Realgar

Thulite

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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

3.563.1

1 7.18

1.5 Fracture

(e.g. graphite).

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{010} Good

Perfect {010} imperfect {100}

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Ca₂Al₃(SiO₄)₃(OH)

Realgar and Thulite Chemical Formula

While comparing Realgar and Thulite 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 Thulite chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Realgar and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Thulite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 3.1 whereas that of Thulite is 3.1.