Alexandrite and Simpsonite Physical Properties

Alexandrite

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

3.69-3.81Not Available

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

1,1 ; 3,2.

None

1.7 Mohs Hardness

8.57-7.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

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

Alexandrite and Simpsonite Chemical Formula

While comparing Alexandrite 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 Alexandrite and Simpsonite chemical formula.

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

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Alexandrite and Simpsonite Specific Gravity

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