Zoisite and Verdelite Physical Properties

Zoisite

Verdelite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.20-3.50

Uneven, Conchoidal, Even

Perfect {010} imperfect {100}

6-7

Ca₂Al₃(SiO₄)₃(OH)

2.90-3.40

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Zoisite and Verdelite Chemical Formula

While comparing Zoisite and Verdelite 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 Zoisite and Verdelite chemical formula.

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Zoisite and Verdelite Specific Gravity

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