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Lazulite
Lazulite

Topaz
Topaz



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Lazulite
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Topaz

Lazulite and Topaz Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
3.04-3.17
Uneven
{001} Indistinct, {???} Indistinct
5.5
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
 
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-
-
3.49-3.57
Subconchoidal, Uneven, Conchoidal
[001] Perfect
8
Al2SiO4(F,OH)2

Lazulite and Topaz Chemical Formula

While comparing Lazulite and Topaz 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 Lazulite and Topaz chemical formula.

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Lazulite and Topaz Specific Gravity

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