Hexagonite and Crystal Opal Physical Properties

Hexagonite

Crystal Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-3.031.97-2.22

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

[110] perfect; [010] distinct

Not Available

1.7 Mohs Hardness

5-65.5-6.5

2 10

1.8 Chemical Composition

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

SiO 2 + H 2OUlrich Henn and Claudio C.

Hexagonite and Crystal Opal Chemical Formula

While comparing Hexagonite and Crystal 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 Hexagonite and Crystal Opal chemical formula.

Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Hexagonite and Crystal Opal Specific Gravity

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