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Bastnasite and Black Opal Physical Properties


Black Opal and Bastnasite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.95-5.0   
1.97-2.22   

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

Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}   
Not Available   

Mohs Hardness
4-5   
6-6.5   

Chemical Composition
(Ce,La)(CO 3)FMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Bastnasite and Black Opal Chemical Formula

While comparing Bastnasite and Black 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 Bastnasite and Black Opal chemical formula.

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Bastnasite and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.

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