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Alexandrite
Alexandrite

Apophyllite
Apophyllite



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Alexandrite
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Apophyllite

Alexandrite and Apophyllite 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
 
-
-
-
2.30-2.50
Uneven
Perfect on (001)
4.5-5
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Alexandrite and Apophyllite Chemical Formula

While comparing Alexandrite and Apophyllite 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 Apophyllite chemical formula.

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Alexandrite and Apophyllite Specific Gravity

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