Alexandrite and Vanadinite Physical Properties

Alexandrite

Vanadinite

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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

3.69-3.81

6.8-7.1

1.5 Fracture

Not Available

Uneven, Conchoidal, Brittle

1.6 Cleavage

1,1 ; 3,2.

None

1.7 Mohs Hardness

8.5

3-4

1.8 Chemical Composition

BeAl ₂ O ₄

C20H36

Alexandrite and Vanadinite Chemical Formula

While comparing Alexandrite and Vanadinite 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 Vanadinite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Vanadinite- C20H36

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Alexandrite and Vanadinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Vanadinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Vanadinite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 6.8-7.1 whereas that of Vanadinite is 6.8-7.1.