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Alexandrite
Alexandrite

Variscite
Variscite



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Alexandrite
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Variscite

Alexandrite and Variscite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.69-3.812.42-2.58
Amber
1 7.18
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
8.54-5
Amber
2 10
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)

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.