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Powellite
Powellite

Umbalite
Umbalite



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Powellite
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Umbalite

Powellite and Umbalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.23
Conchoidal
{111} Distinct
3.5-4
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
3.62-4.33
Uneven
Indiscernible
7-7.5
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

Powellite and Umbalite Chemical Formula

While comparing Powellite and Umbalite 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 Powellite and Umbalite chemical formula.

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Powellite and Umbalite Specific Gravity

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