Polyhalite and Hexagonite Physical Properties

Polyhalite

Hexagonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.782.98-3.03

1 7.18

1.5 Fracture

Conchoidal, Brittle

Uneven

1.6 Cleavage

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

[110] perfect; [010] distinct

1.7 Mohs Hardness

3.55-6

2 10

1.8 Chemical Composition

Not Available

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Polyhalite and Hexagonite Chemical Formula

While comparing Polyhalite and Hexagonite 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 Polyhalite and Hexagonite chemical formula.

Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Compare Red Gemstones

Polyhalite Vs Jacinth

Polyhalite Vs Vanadinite

Polyhalite Vs Heliotrope

Polyhalite and Hexagonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.