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Black Opal
Black Opal

Langbeinite
Langbeinite



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Black Opal
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Langbeinite

Black Opal and Langbeinite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Slowly dissolves in water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.97-2.22
Not Available
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle
1.6 Cleavage
Not Available
None
1.7 Mohs Hardness
6-6.5
3.5-4
1.8 Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Not Available

Black Opal and Langbeinite Chemical Formula

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

  • Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
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Black Opal and Langbeinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Black Opal is Not Available whereas that of Langbeinite is Not Available.