Vanadinite and Alexandrite Physical Properties

Vanadinite

Alexandrite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.8-7.13.69-3.81

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Not Available

1.6 Cleavage

None

1,1 ; 3,2.

1.7 Mohs Hardness

3-48.5

2 10

1.8 Chemical Composition

C20H36

BeAl ₂ O ₄

Vanadinite and Alexandrite Chemical Formula

While comparing Vanadinite and Alexandrite 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 Vanadinite and Alexandrite chemical formula.

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

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Vanadinite and Alexandrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vanadinite and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vanadinite and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Vanadinite is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.