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Alexandrite
Alexandrite

Amethyst
Amethyst



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Alexandrite
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Amethyst

Alexandrite and Amethyst Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.69-3.81
-
1,1 ; 3,2.
8.5
BeAl 2 O 4
 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2

Alexandrite and Amethyst Chemical Formula

While comparing Alexandrite and Amethyst 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 Amethyst chemical formula.

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Alexandrite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite Vs Amethyst during the identification of gemstone. Specific gravity of Alexandrite is whereas that of Amethyst is .