Sunstone and Zoisite Physical Properties

Sunstone

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

2.62-2.653.20-3.50

1 7.18

1.5 Fracture

Gemstones of the world (2001)

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

1.6 Cleavage

001

Perfect {010} imperfect {100}

1.7 Mohs Hardness

66-7

2 10

1.8 Chemical Composition

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Ca₂Al₃(SiO₄)₃(OH)

Sunstone and Zoisite Chemical Formula

While comparing Sunstone 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 Sunstone and Zoisite chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)

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Sunstone and Zoisite Specific Gravity

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