Anthophyllite and Polyhalite Physical Properties

Anthophyllite

Polyhalite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.9-3.5

Conchoidal

{110} Perfect, {???} Distinct, {???} Distinct

5.5-6

(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Brittle

Soluble

2.78

Conchoidal

Perfect on {10 1 }; parting on {010}

3.5

K2Ca2Mg(SO4)4·2H2O

Anthophyllite and Polyhalite Chemical Formula

While comparing Anthophyllite 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 Anthophyllite and Polyhalite chemical formula.

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Anthophyllite and Polyhalite Specific Gravity

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