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Topaz
Topaz

Bastnasite
Bastnasite



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Topaz
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Bastnasite

Topaz and Bastnasite 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
 
-
-
-
4.95-5.0
Uneven
Imperfect to indistinct on {10 1 0}, parting on {0001}
4-5
(Ce,La)(CO 3)FMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Topaz and Bastnasite Chemical Formula

While comparing Topaz and Bastnasite 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 Bastnasite chemical formula.

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Topaz and Bastnasite Specific Gravity

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