Hibonite and Wood Opal Physical Properties

Hibonite

Wood 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

3.841.98-2.50

1 7.18

1.5 Fracture

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

Not Available

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

Hibonite and Wood Opal Chemical Formula

While comparing Hibonite and Wood 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 Wood Opal chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Chemical formula of Wood Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Hibonite and Wood Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hibonite and Wood Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Wood Opal Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 1.98-2.50 whereas that of Wood Opal is 1.98-2.50.