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Carnelian and Grandidierite Physical Properties


Grandidierite and Carnelian Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.58-2.64   
2.85-3.00   

Fracture
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)   
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven   

Cleavage
Absent   
Perfect   

Mohs Hardness
6.5-7   
7.5   

Chemical Composition
SiO2   
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.   

Optical Properties >>
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Carnelian and Grandidierite Chemical Formula

While comparing Carnelian and Grandidierite 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 Carnelian and Grandidierite chemical formula.

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Carnelian and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.

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