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Cancrinite and Boulder Opal Physical Properties


Boulder Opal and Cancrinite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.42-2.52   
1.98-2.25   

Fracture
Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Perfect on {10 1 0}, poor on {0001}   
Not Available   

Mohs Hardness
5-6   
5-6.5   

Chemical Composition
Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Cancrinite and Boulder Opal Chemical Formula

While comparing Cancrinite 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 Cancrinite and Boulder Opal chemical formula.

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Cancrinite and Boulder Opal Specific Gravity

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

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