Xonotlite and Alexandrite Physical Properties

Xonotlite

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

2.71-2.723.69-3.81

1 7.18

1.5 Fracture

Handbook of mineralogy (2001), Difficult, Fibrous

Not Available

1.6 Cleavage

{???} Good

1,1 ; 3,2.

1.7 Mohs Hardness

6-6.58.5

2 10

1.8 Chemical Composition

Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

BeAl ₂ O ₄

Xonotlite and Alexandrite Chemical Formula

While comparing Xonotlite 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 Xonotlite and Alexandrite chemical formula.

Chemical formula of Xonotlite- Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Alexandrite- BeAl ₂ O ₄

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Xonotlite and Alexandrite Specific Gravity

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