Alexandrite and Amber Physical Properties

Alexandrite

Amber

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.81

1.05-1.10

1.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

1,1 ; 3,2.

None

1.7 Mohs Hardness

8.5

2-2.5

1.8 Chemical Composition

BeAl ₂ O ₄

[C,H,O]

Alexandrite and Amber Chemical Formula

While comparing Alexandrite and Amber 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 Amber chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Amber- [C,H,O]

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Alexandrite and Amber Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Amber Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Amber Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 1.05-1.10 whereas that of Amber is 1.05-1.10.