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Common Opal
Common Opal

Almandine Garnet
Almandine Garnet



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Common Opal
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Almandine Garnet

Common Opal and Almandine Garnet 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
1.98-2.504.3
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Not Available
1.6 Cleavage
Not Available
None.
1.7 Mohs Hardness
5.5-6.57.5-8.5
Amber
2 10
1.8 Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Fe3Al2Si3O12

Common Opal and Almandine Garnet Chemical Formula

While comparing Common Opal and Almandine Garnet 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 Common Opal and Almandine Garnet chemical formula.

  • Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  • Chemical formula of Almandine Garnet- Fe3Al2Si3O12

Common Opal and Almandine Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Common Opal and Almandine Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Almandine Garnet Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 4.3 whereas that of Almandine Garnet is 4.3.