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Alexandrite
Alexandrite

Feldspar
Feldspar



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Alexandrite
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Feldspar

Alexandrite and Feldspar 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
3.69-3.812.56-2.75
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
1.6 Cleavage
1,1 ; 3,2.
two or three
1.7 Mohs Hardness
8.56-6.5
Amber
2 10
1.8 Chemical Composition
BeAl 2 O 4
Not Available

Alexandrite and Feldspar Chemical Formula

While comparing Alexandrite and Feldspar 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 Feldspar chemical formula.

  • Chemical formula of Alexandrite- BeAl 2 O 4
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Alexandrite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.