Polyhalite and Violane Physical Properties

Polyhalite

Violane

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.783.22-3.40

1 7.18

1.5 Fracture

Conchoidal, Brittle

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3.55-6

2 10

1.8 Chemical Composition

Not Available

(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)

Polyhalite and Violane Chemical Formula

While comparing Polyhalite and Violane 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 Violane chemical formula.

Chemical formula of Violane- (Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)

Compare Red Gemstones

Polyhalite Vs Heliotrope

Polyhalite Vs Vanadinite

Polyhalite Vs Jacinth

Polyhalite and Violane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Violane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Violane Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 3.22-3.40 whereas that of Violane is 3.22-3.40.