Realgar and Dioptase Physical Properties

Realgar

Dioptase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.563.25-3.35

1 7.18

1.5 Fracture

(e.g. graphite).

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

{010} Good

Perfect in three directions

1.7 Mohs Hardness

Not Available5

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Realgar and Dioptase Chemical Formula

While comparing Realgar and Dioptase 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 Dioptase chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Realgar and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Realgar is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.