Alexandrite and Variscite Physical Properties

Alexandrite

Variscite

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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

2.42-2.58

1.5 Fracture

Not Available

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

1,1 ; 3,2.

[010] perfect

1.7 Mohs Hardness

8.5

4-5

1.8 Chemical Composition

BeAl ₂ O ₄

AlPO₄ · 2(H₂O)

Alexandrite and Variscite Chemical Formula

While comparing Alexandrite and Variscite 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 Variscite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

Compare Gems for Scorpio

Alexandrite Vs Gahnospinel

Alexandrite Vs Citrine

Alexandrite Vs Fluorite

Alexandrite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.