Dioptase and Calcite Physical Properties

Dioptase

Calcite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.35

2.67-2.73

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Perfect in three directions

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Dioptase and Calcite Chemical Formula

While comparing Dioptase and Calcite 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 Calcite chemical formula.

Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

Compare Green Gemstones

Dioptase Vs Faustite

Dioptase Vs Euclase

Dioptase Vs Feldspar

Dioptase and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dioptase and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dioptase and Calcite Optical Properties during the identification of gemstone. Specific gravity of Dioptase is 2.67-2.73 whereas that of Calcite is 2.67-2.73.