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Mottramite
Mottramite

Danburite
Danburite



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Mottramite
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Danburite

Mottramite and Danburite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
5.9
Sub-Conchoidal
None observed
3
PbCu(VO4)(OH)
 
Brittle
-
-
2.97-3.03
Uneven, ConchoidalWalter Schumann, Conchoidal
{001} Poor
7
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Mottramite and Danburite Chemical Formula

While comparing Mottramite and Danburite 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 Mottramite and Danburite chemical formula.

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Mottramite and Danburite Specific Gravity

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