Ammolite and Alexandrite Physical Properties

Ammolite

Alexandrite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.75-2.803.69-3.81

1 7.18

1.5 Fracture

Uneven, Granular

Not Available

1.6 Cleavage

no true cleavage

1,1 ; 3,2.

1.7 Mohs Hardness

48.5

2 10

1.8 Chemical Composition

Not Available

BeAl ₂ O ₄

Ammolite and Alexandrite Chemical Formula

While comparing Ammolite and Alexandrite 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 Ammolite and Alexandrite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄

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Ammolite and Alexandrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ammolite and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ammolite and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Ammolite is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.