Alexandrite and Chlorite group Physical Properties

Alexandrite

Chlorite group

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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

3.69-3.81

2.6-3.3

1.5 Fracture

Not Available

Lamellar

1.6 Cleavage

1,1 ; 3,2.

Perfect 001

1.7 Mohs Hardness

8.5

2-2.5

1.8 Chemical Composition

BeAl ₂ O ₄

Not Available

Alexandrite and Chlorite group Chemical Formula

While comparing Alexandrite and Chlorite group 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 Chlorite group chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄

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Alexandrite and Chlorite group Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Chlorite group Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Chlorite group Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.6-3.3 whereas that of Chlorite group is 2.6-3.3.