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Rosasite and Boulder Opal Physical Properties


Boulder Opal and Rosasite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Effervesces in cold   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4-4.2   
1.98-2.25   

Fracture
Splintery   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Perfect on {100} and {010}   
Not Available   

Mohs Hardness
4   
5-6.5   

Chemical Composition
Not Available   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Rosasite and Boulder Opal Chemical Formula

While comparing Rosasite 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 Rosasite and Boulder Opal chemical formula.

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Rosasite and Boulder Opal Specific Gravity

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

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