Thulite and Rosasite Physical Properties

Thulite

Rosasite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Effervesces in cold

1.3 Durability

Not Available

1.4 Specific Gravity

3.14-4.2

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Splintery

1.6 Cleavage

Perfect {010} imperfect {100}

Perfect on {100} and {010}

1.7 Mohs Hardness

6-74

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Not Available

Thulite and Rosasite Chemical Formula

While comparing Thulite and Rosasite 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 Rosasite chemical formula.

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

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Thulite and Rosasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Rosasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Rosasite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 4-4.2 whereas that of Rosasite is 4-4.2.