Alexandrite and Andean Opal Physical Properties

Alexandrite

Andean Opal

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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

3.69-3.81Not Available

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

1,1 ; 3,2.

Not Available

1.7 Mohs Hardness

8.5Not Available

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

Not Available

Alexandrite and Andean Opal Chemical Formula

While comparing Alexandrite and Andean Opal 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 Andean Opal chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄

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Alexandrite and Andean Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Andean Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Andean Opal Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is Not Available whereas that of Andean Opal is Not Available.