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Chondrodite
Chondrodite

Black Opal
Black Opal



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Chondrodite
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Black Opal

Chondrodite and Black Opal Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.10-3.20
1.97-2.22
1.5 Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Poor to good on (001)
Not Available
1.7 Mohs Hardness
6-6.5
6-6.5
1.8 Chemical Composition
(Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich Henn and Claudio C.
SiO 2 + H 2OUlrich Henn and Claudio C.

Chondrodite and Black Opal Chemical Formula

While comparing Chondrodite and Black 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 Chondrodite and Black Opal chemical formula.

  • Chemical formula of Chondrodite- (Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich Henn and Claudio C.
  • Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Chondrodite and Black Opal Specific Gravity

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