Alexandrite and Hanksite Physical Properties

Alexandrite

Hanksite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Readily soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.69-3.81

2.562

1.5 Fracture

Not Available

Uneven, Conchoidal, Brittle

1.6 Cleavage

1,1 ; 3,2.

Good on {0001}

1.7 Mohs Hardness

8.5

3-3.5

1.8 Chemical Composition

BeAl ₂ O ₄

KNa22(SO4)9(CO3)2Cl

Alexandrite and Hanksite Chemical Formula

While comparing Alexandrite and Hanksite 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 Hanksite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Hanksite- KNa22(SO4)9(CO3)2Cl

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Alexandrite and Hanksite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Hanksite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Hanksite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.562 whereas that of Hanksite is 2.562.