Hibonite and Crystal Opal Physical Properties

Hibonite

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

3.841.97-2.22

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

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

1.6 Cleavage

{0001} good, {10 1 0} parting

Not Available

1.7 Mohs Hardness

7.5-85.5-6.5

2 10

1.8 Chemical Composition

(Ca,Ce)(Al,Ti,Mg)12O19

SiO 2 + H 2OUlrich Henn and Claudio C.

Hibonite and Crystal Opal Chemical Formula

While comparing Hibonite 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 Hibonite and Crystal Opal chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

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Hibonite and Crystal Opal Specific Gravity

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