Alexandrite and Topazolite Physical Properties

Alexandrite

Topazolite

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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

3.69-3.813.70-4.10

1 7.18

1.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

1,1 ; 3,2.

Not Available

1.7 Mohs Hardness

8.56.5-7

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Alexandrite and Topazolite Chemical Formula

While comparing Alexandrite and Topazolite 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 Topazolite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Topazolite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Alexandrite and Topazolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Topazolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Topazolite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 3.70-4.10 whereas that of Topazolite is 3.70-4.10.