Alexandrite and Orthoclase Physical Properties

Alexandrite

Orthoclase

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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

3.69-3.812.54-2.61

1 7.18

1.5 Fracture

Not Available

Gems, Uneven

1.6 Cleavage

1,1 ; 3,2.

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

8.56

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Alexandrite and Orthoclase Chemical Formula

While comparing Alexandrite and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Scorpio

Alexandrite Vs Fluorite

Alexandrite Vs Gahnospinel

Alexandrite Vs Citrine

Alexandrite and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.