Crystal Opal and Rhodolite Physical Properties

Crystal Opal

Rhodolite

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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

1.97-2.223.84

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

Not Available

none, may show indistinct parting

1.7 Mohs Hardness

5.5-6.57-7.5

2 10

1.8 Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.

(Mg,Fe)₃Al₂Si₃O₁₂

Crystal Opal and Rhodolite Chemical Formula

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

Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Crystal Opal Vs Diaspore

Crystal Opal Vs Dravite

Crystal Opal Vs Diopside

Crystal Opal and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crystal Opal and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Opal and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Crystal Opal is 3.84 whereas that of Rhodolite is 3.84.