Topaz and Simpsonite Physical Properties

Topaz

Simpsonite

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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

3.49-3.57Not Available

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[001] Perfect

None

1.7 Mohs Hardness

87-7.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

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

Topaz and Simpsonite Chemical Formula

While comparing Topaz and Simpsonite 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 Topaz and Simpsonite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

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Topaz and Simpsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Simpsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Simpsonite Optical Properties during the identification of gemstone. Specific gravity of Topaz is Not Available whereas that of Simpsonite is Not Available.