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Star Ruby
Star Ruby

Mottramite
Mottramite



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Star Ruby
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Mottramite

Star Ruby and Mottramite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.95-4.10
Uneven
None
-9999
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
Soluble
-
5.9
Sub-Conchoidal
None observed
3
PbCu(VO4)(OH)

Star Ruby and Mottramite Chemical Formula

While comparing Star Ruby 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 Star Ruby and Mottramite chemical formula.

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Star Ruby and Mottramite Specific Gravity

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