Hanksite and Alexandrite Physical Properties

Hanksite

Alexandrite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Readily soluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.562

3.69-3.81

1.5 Fracture

Uneven, Conchoidal, Brittle

Not Available

1.6 Cleavage

Good on {0001}

1,1 ; 3,2.

1.7 Mohs Hardness

3-3.5

8.5

1.8 Chemical Composition

KNa22(SO4)9(CO3)2Cl

BeAl ₂ O ₄

Hanksite and Alexandrite Chemical Formula

While comparing Hanksite 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 Hanksite and Alexandrite chemical formula.

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

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Hanksite and Alexandrite Specific Gravity

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