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Topaz
Topaz

Demantoid
Demantoid



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Topaz
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Demantoid

Topaz and Demantoid Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.49-3.57
Subconchoidal, Uneven, Conchoidal
[001] Perfect
8
Al2SiO4(F,OH)2
 
-
-
-
3.77-3.95
-
Imperfect
6.5
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Topaz and Demantoid Chemical Formula

While comparing Topaz and Demantoid 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 Topaz and Demantoid chemical formula.

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Topaz and Demantoid Specific Gravity

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