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Jet
Jet

Sard
Sard



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X
Jet
X
Sard

Jet and Sard Physical Properties

Jet
Jet
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.19-1.35
ConchoidalWalter Schumann
None
2.5-4
C
 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Jet and Sard Chemical Formula

While comparing Jet and Sard 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 Jet and Sard chemical formula.

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Jet and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jet and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jet Vs Sard during the identification of gemstone. Specific gravity of Jet is whereas that of Sard is .