Citrine and Alexandrite Physical Properties

Citrine

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

2.653.69-3.81

1 7.18

1.5 Fracture

ConchoidalMichael OâDonoghue, Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

Not Available

1.6 Cleavage

Indiscernible

1,1 ; 3,2.

1.7 Mohs Hardness

78.5

2 10

1.8 Chemical Composition

SiO₂

BeAl ₂ O ₄

Citrine and Alexandrite Chemical Formula

While comparing Citrine 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 Citrine and Alexandrite chemical formula.

Chemical formula of Citrine- SiO₂
Chemical formula of Alexandrite- BeAl ₂ O ₄

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Citrine and Alexandrite Specific Gravity

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