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Periclase and Rock Crystal Physical Properties


Rock Crystal and Periclase Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.7-3.9   
2.65   

Fracture
Conchoidal, Brittle   
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
{001} perfect; {111} imperfect, may exhibit parting on , {011}   
Not Available   

Mohs Hardness
5.5-6   
7   

Chemical Composition
MgOMichael O’Donoghue , Gems, Sixth Edition (2006)   
SiO 2Walter Schumann , Gemstones of the world (2001)   

Optical Properties >>
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Periclase and Rock Crystal Chemical Formula

While comparing Periclase and Rock Crystal 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 Periclase and Rock Crystal chemical formula.

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Periclase and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Periclase and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Periclase is 2.65 whereas that of Rock Crystal is 2.65.

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