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Black Opal
Black Opal

Moss Agate
Moss Agate



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Black Opal
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Moss Agate

Black Opal and Moss Agate Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.97-2.222.58-2.64
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Not Available
1.6 Cleavage
Not Available
Not Available
1.7 Mohs Hardness
6-6.56.5-7
Amber
2 10
1.8 Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
SiO 2Walter Schumann , Gemstones of the world (2001)

Black Opal and Moss Agate Chemical Formula

While comparing Black Opal and Moss Agate 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 Moss Agate chemical formula.

  • Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Moss Agate- SiO 2Walter Schumann , Gemstones of the world (2001)

Black Opal and Moss Agate Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Moss Agate Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Moss Agate Optical Properties during the identification of gemstone. Specific gravity of Black Opal is 2.58-2.64 whereas that of Moss Agate is 2.58-2.64.