Dioptase and Black Opal Physical Properties

Dioptase

Black Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.351.97-2.22

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect in three directions

Not Available

1.7 Mohs Hardness

56-6.5

2 10

1.8 Chemical Composition

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

SiO 2 + H 2OUlrich Henn and Claudio C.

Dioptase and Black Opal Chemical Formula

While comparing Dioptase and Black 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 Dioptase and Black Opal chemical formula.

Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Green Gemstones

Dioptase Vs Euclase

Dioptase Vs Feldspar

Dioptase Vs Faustite

Dioptase and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dioptase and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dioptase and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Dioptase is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.