Villiaumite and Crystal Opal Physical Properties

Villiaumite

Crystal Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.791.97-2.22

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

{100} Perfect, {010} Perfect, {001} Perfect

Not Available

1.7 Mohs Hardness

25.5-6.5

2 10

1.8 Chemical Composition

NaFUlrich Henn and Claudio C.

SiO 2 + H 2OUlrich Henn and Claudio C.

Villiaumite and Crystal Opal Chemical Formula

While comparing Villiaumite 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 Villiaumite and Crystal Opal chemical formula.

Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Gems Found in America

Villiaumite Vs Witherite

Villiaumite Vs Xonotlite

Villiaumite Vs Zincite

Villiaumite and Crystal Opal Specific Gravity

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