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Legrandite
Legrandite

Precious Opal
Precious Opal



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Legrandite
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Precious Opal

Legrandite and Precious Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.98-4.04
Conchoidal
Imperfect, poor one {100}
4.5-5
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 · nH 2OGemdat.org , Management Team (2012)

Legrandite and Precious Opal Chemical Formula

While comparing Legrandite and Precious Opal 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 Legrandite and Precious Opal chemical formula.

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Legrandite and Precious Opal Specific Gravity

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