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Ulexite
Ulexite

Polyhalite
Polyhalite



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Ulexite
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Polyhalite

Ulexite and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.65-1.99
Uneven
{010} Perfect, {110} Perfect
2-2.5
NaCaB 5O 6(OH) 6 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Ulexite and Polyhalite Chemical Formula

While comparing Ulexite and Polyhalite 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 Ulexite and Polyhalite chemical formula.

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Ulexite and Polyhalite Specific Gravity

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