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Legrandite
Legrandite

Mottramite
Mottramite



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Legrandite
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Mottramite

Legrandite and Mottramite 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
 
Brittle
Soluble
-
5.9
Sub-Conchoidal
None observed
3
PbCu(VO4)(OH)

Legrandite and Mottramite Chemical Formula

While comparing Legrandite and Mottramite 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 Mottramite chemical formula.

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Legrandite and Mottramite Specific Gravity

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