Simpsonite and Sellaite Physical Properties

Simpsonite

Sellaite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available

3.14-3.16

1.5 Fracture

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

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

1.6 Cleavage

None

Perfect on {010} and {110}

1.7 Mohs Hardness

7-7.5

5-5.5

1.8 Chemical Composition

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

MgF 2Ulrich Henn and Claudio C.

Simpsonite and Sellaite Chemical Formula

While comparing Simpsonite and Sellaite 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 Sellaite chemical formula.

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

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Simpsonite and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Simpsonite and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Simpsonite and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Simpsonite is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.