Hibschite and White Opal Physical Properties

Hibschite

White 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

3.05-3.081.98-2.50

1 7.18

1.5 Fracture

Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

6.55.5-6.5

2 10

1.8 Chemical Composition

Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

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

Hibschite and White Opal Chemical Formula

While comparing Hibschite and White 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 Hibschite and White Opal chemical formula.

Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Hibschite and White Opal Specific Gravity

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