Zoisite and Poldervaartite Physical Properties

Zoisite

Poldervaartite

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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)

2.91

None

-9999

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Zoisite and Poldervaartite Chemical Formula

While comparing Zoisite and Poldervaartite 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 Poldervaartite chemical formula.

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Zoisite and Poldervaartite Specific Gravity

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