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Amblygonite
Amblygonite

Polyhalite
Polyhalite



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Amblygonite
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Polyhalite

Amblygonite and Polyhalite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.98-3.102.78
1 7.18
👆🏻

Fracture

Sub-Conchoidal, Irregular/uneven, Uneven, Conchoidal
Conchoidal

Cleavage

[100] Perfect, [110] Good, [011] Distinct
Perfect on {10 1 }; parting on {010}

Mohs Hardness

63.5
2 10
👆🏻

Chemical Composition

(Li,Na)Al(PO 4)(F,OH)Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
K2Ca2Mg(SO4)4·2H2O

Amblygonite and Polyhalite Chemical Formula

While comparing Amblygonite 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 Amblygonite and Polyhalite chemical formula.

  • Chemical formula of Amblygonite- (Li,Na)Al(PO 4)(F,OH)Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
  • Chemical formula of Polyhalite- K2Ca2Mg(SO4)4·2H2O

Amblygonite and Polyhalite Specific Gravity

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