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Phlogopite and Rock Crystal Physical Properties


Rock Crystal and Phlogopite Physical Properties


Physical Properties

Tenacity
Tough   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.78-2.85   
2.65   

Fracture
None, Uneven   
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Perfect basal (001)   
Not Available   

Mohs Hardness
2-2.5   
7   

Chemical Composition
Not Available   
SiO 2Walter Schumann , Gemstones of the world (2001)   

Optical Properties >>
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Phlogopite and Rock Crystal Chemical Formula

While comparing Phlogopite 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 Phlogopite and Rock Crystal chemical formula.

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Phlogopite and Rock Crystal Specific Gravity

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

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