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Chrome-Chalcedony and Pollucite Physical Properties


Pollucite and Chrome-Chalcedony Physical Properties


Physical Properties

Tenacity
-  
Brittle  

Solubility
-  
Readily soluble in HF  

Durability
-  
-  

Specific Gravity
2.55-2.70  
2.86-2.94  

Fracture
-  
Conchoidal, Uneven  

Cleavage
None  
None observed  

Mohs Hardness
6.5-7  
6.5-7  

Chemical Composition
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)  
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references  

Optical Properties >>
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Chrome-Chalcedony and Pollucite Chemical Formula

While comparing Chrome-Chalcedony and Pollucite 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 Chrome-Chalcedony and Pollucite chemical formula.

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Chrome-Chalcedony and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.

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