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Blue John
Blue John

Agate Opal
Agate Opal



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Blue John
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Agate Opal

Blue John and Agate Opal 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
3.00-3.251.98-2.50
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, Conchoidal, Gemstones of the world (2001)
1.6 Cleavage
Not Available
Not Available
1.7 Mohs Hardness
Not Available5.5-6.5
Amber
2 10
1.8 Chemical Composition
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Blue John and Agate Opal Chemical Formula

While comparing Blue John and Agate 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 Blue John and Agate Opal chemical formula.

  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Agate Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Blue John and Agate Opal Specific Gravity

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