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Alabaster
Alabaster

Boulder Opal
Boulder Opal



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Alabaster
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Alabaster and Boulder 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
2.30
1.98-2.25
1.5 Fracture
Not Available
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Not Available
Not Available
1.7 Mohs Hardness
2
5-6.5
1.8 Chemical Composition
CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
SiO 2 + H 2OUlrich Henn and Claudio C.

Alabaster and Boulder Opal Chemical Formula

While comparing Alabaster 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 Alabaster and Boulder Opal chemical formula.

  • Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
  • Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Alabaster and Boulder Opal Specific Gravity

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