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Umbalite
Umbalite

Augelite
Augelite



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Umbalite
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Augelite

Umbalite and Augelite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
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)
 
-
-
-
2.70-2.75
Conchoidal
From the Greek for luster, for its pearly luster on the cleavage.
4.5-5
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Umbalite and Augelite Chemical Formula

While comparing Umbalite and Augelite 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 Umbalite and Augelite chemical formula.

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Umbalite and Augelite Specific Gravity

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