Alexandrite and Fibrolite Physical Properties

Alexandrite

Fibrolite

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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

3.69-3.813.14-3.25

1 7.18

1.5 Fracture

Not Available

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

1,1 ; 3,2.

Not Available

1.7 Mohs Hardness

8.56-7

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

Al 2SiO 5Arthur Thomas , Gemstones (2009)

Alexandrite and Fibrolite Chemical Formula

While comparing Alexandrite and Fibrolite 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 Fibrolite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)

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Alexandrite and Fibrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.