Sunstone and Thulite Physical Properties

Sunstone

Thulite

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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

2.62-2.653.1

1 7.18

1.5 Fracture

Gemstones of the world (2001)

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

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 Thulite Chemical Formula

While comparing Sunstone and Thulite 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 Thulite chemical formula.

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

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Sunstone and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sunstone and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Thulite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 3.1 whereas that of Thulite is 3.1.