Alexandrite and Sphalerite Physical Properties

Alexandrite

Sphalerite

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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

3.69-3.813.95-4.10

1 7.18

1.5 Fracture

Not Available

UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven

1.6 Cleavage

1,1 ; 3,2.

{110} Perfect, {110} Perfect, {110} Perfect

1.7 Mohs Hardness

8.53.5-4

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Alexandrite and Sphalerite Chemical Formula

While comparing Alexandrite and Sphalerite 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 Sphalerite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Alexandrite and Sphalerite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Sphalerite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Sphalerite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 3.95-4.10 whereas that of Sphalerite is 3.95-4.10.