Polyhalite and Vanadinite Physical Properties

Polyhalite

Vanadinite

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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

2.78

6.8-7.1

1.5 Fracture

Conchoidal, Brittle

Uneven, Conchoidal, Brittle

1.6 Cleavage

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

None

1.7 Mohs Hardness

3.5

3-4

1.8 Chemical Composition

Not Available

C20H36

Polyhalite and Vanadinite Chemical Formula

While comparing Polyhalite and Vanadinite 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 Vanadinite chemical formula.

Chemical formula of Vanadinite- C20H36

Compare Red Gemstones

Polyhalite Vs Heliotrope

Polyhalite Vs Vanadinite

Polyhalite Vs Jacinth

Polyhalite and Vanadinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Vanadinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Vanadinite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 6.8-7.1 whereas that of Vanadinite is 6.8-7.1.