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Gaylussite
Gaylussite

Boulder Opal
Boulder Opal



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Gaylussite
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Boulder Opal

Gaylussite and Boulder Opal Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
decomposes in water
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.93-1.99
1.98-2.25
1.5 Fracture
Conchoidal, Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
perfect [110]
Not Available
1.7 Mohs Hardness
2.5
5-6.5
1.8 Chemical Composition
Na2Ca(CO3)2•5(H2O)
SiO 2 + H 2OUlrich Henn and Claudio C.

Gaylussite and Boulder Opal Chemical Formula

While comparing Gaylussite and Boulder 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 Gaylussite and Boulder Opal chemical formula.

  • Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)
  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Gaylussite and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gaylussite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gaylussite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Gaylussite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.