Alexandrite and Gaspeite Physical Properties

Alexandrite

Gaspeite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.81

3.71

1.5 Fracture

Not Available

Uneven

1.6 Cleavage

1,1 ; 3,2.

{10 1 1} Good

1.7 Mohs Hardness

8.5

4.5-5

1.8 Chemical Composition

BeAl ₂ O ₄

(Ni,Mg,Fe++)CO3

Alexandrite and Gaspeite Chemical Formula

While comparing Alexandrite and Gaspeite 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 Gaspeite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Gaspeite- (Ni,Mg,Fe++)CO3

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Alexandrite and Gaspeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Gaspeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Gaspeite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 3.71 whereas that of Gaspeite is 3.71.