Thulite and Scapolite Physical Properties

Thulite

Scapolite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.12.58-2.74

1 7.18

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Fracture

Uneven, Conchoidal

ConchoidalWalter Schumann, Splintery

Cleavage

Perfect {010} imperfect {100}

{100} Distinct, {110} Distinct

Mohs Hardness

6-75.5-6

2 10

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Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

Thulite and Scapolite Chemical Formula

While comparing Thulite and Scapolite 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 Scapolite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

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Thulite and Scapolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.