×

Augelite
Augelite

Polyhalite
Polyhalite



ADD
Compare
X
Augelite
X
Polyhalite

Augelite and Polyhalite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.70-2.752.78
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

From the Greek for luster, for its pearly luster on the cleavage.
Perfect on {10 1 }; parting on {010}

Mohs Hardness

4.5-53.5
2 10
👆🏻

Chemical Composition

Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)
K2Ca2Mg(SO4)4·2H2O

Augelite and Polyhalite Chemical Formula

While comparing Augelite 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 Augelite and Polyhalite chemical formula.

  • Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Augelite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augelite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Augelite is 2.78 whereas that of Polyhalite is 2.78.