Selenite and Zoisite Physical Properties

Selenite

Zoisite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.20-3.50

1 7.18

1.5 Fracture

Not Available

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even

1.6 Cleavage

Not Available

Perfect {010} imperfect {100}

1.7 Mohs Hardness

26-7

2 10

1.8 Chemical Composition

Not Available

Ca₂Al₃(SiO₄)₃(OH)

Selenite and Zoisite Chemical Formula

While comparing Selenite and Zoisite 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 Selenite and Zoisite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)

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Selenite and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Selenite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Selenite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Selenite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.