Scapolite and Variscite Physical Properties

Scapolite

Variscite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.58-2.742.42-2.58

1 7.18

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Fracture

ConchoidalWalter Schumann, Splintery

Conchoidal, Splintery, ConchoidalWalter Schumann

Cleavage

{100} Distinct, {110} Distinct

[010] perfect

Mohs Hardness

5.5-64-5

2 10

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Chemical Composition

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

AlPO₄ · 2(H₂O)

Scapolite and Variscite Chemical Formula

While comparing Scapolite and Variscite 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 Scapolite and Variscite chemical formula.

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
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Scapolite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scapolite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scapolite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Scapolite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.