Hiddenite and Alexandrite Physical Properties

Hiddenite

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

3.15-3.21

3.69-3.81

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

Not Available

1.6 Cleavage

1,2 prismatic

1,1 ; 3,2.

1.7 Mohs Hardness

6-7

8.5

1.8 Chemical Composition

LiAlSi₂O₆

BeAl ₂ O ₄

Hiddenite and Alexandrite Chemical Formula

While comparing Hiddenite 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 Hiddenite and Alexandrite chemical formula.

Chemical formula of Hiddenite- LiAlSi₂O₆
Chemical formula of Alexandrite- BeAl ₂ O ₄

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Hiddenite and Alexandrite Specific Gravity

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