Tanzanite and Violane Physical Properties

Tanzanite

Violane

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.35

3.22-3.40

1.5 Fracture

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Perfect {010}, imperfect {100}

Not Available

1.7 Mohs Hardness

6.5-7

5-6

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Tanzanite and Violane Chemical Formula

While comparing Tanzanite 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 Tanzanite and Violane chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Violane- (Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)

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Tanzanite and Violane Specific Gravity

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