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Alexandrite
Alexandrite

Agate
Agate



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Alexandrite
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Agate

Alexandrite and Agate Physical Properties

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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
3.69-3.812.60-2.64
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
1,1 ; 3,2.
Indiscernible
1.7 Mohs Hardness
8.56.5-7
Amber
2 10
1.8 Chemical Composition
BeAl 2 O 4
SiO2

Alexandrite and Agate Chemical Formula

While comparing Alexandrite and Agate 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 Agate chemical formula.

  • Chemical formula of Alexandrite- BeAl 2 O 4
  • Chemical formula of Agate- SiO2

Alexandrite and Agate Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Agate Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Agate Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.60-2.64 whereas that of Agate is 2.60-2.64.