Wax Opal and Calcite Physical Properties

Wax Opal

Calcite

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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

1.98-2.502.67-2.73

1 7.18

1.5 Fracture

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

5.5-6.53

2 10

1.8 Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

CaCO 3Ulrich Henn and Claudio C.

Wax Opal and Calcite Chemical Formula

While comparing Wax Opal 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 Wax Opal and Calcite chemical formula.

Chemical formula of Wax Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Wax Opal and Calcite Specific Gravity

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