Simpsonite and Anorthite Physical Properties

Simpsonite

Anorthite

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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 Available2.77

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

None

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

7-7.56-6.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Simpsonite and Anorthite Chemical Formula

While comparing Simpsonite and Anorthite 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 Anorthite chemical formula.

Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Simpsonite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Simpsonite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Simpsonite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Simpsonite is 2.77 whereas that of Anorthite is 2.77.