Simpsonite and Variscite Physical Properties

Simpsonite

Variscite

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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

Not Available2.42-2.58

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

None

[010] perfect

1.7 Mohs Hardness

7-7.54-5

2 10

1.8 Chemical Composition

Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

AlPO₄ · 2(H₂O)

Simpsonite and Variscite Chemical Formula

While comparing Simpsonite 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 Simpsonite and Variscite chemical formula.

Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Simpsonite and Variscite Specific Gravity

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