Thulite and Nepouite Physical Properties

Thulite

Nepouite

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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

3.13.18-3.24

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

Perfect {010} imperfect {100}

perfect on {001}

1.7 Mohs Hardness

6-72

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Not Available

Thulite and Nepouite Chemical Formula

While comparing Thulite and Nepouite 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 Thulite and Nepouite chemical formula.

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

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Thulite and Nepouite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Nepouite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Nepouite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 3.18-3.24 whereas that of Nepouite is 3.18-3.24.