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Sphalerite
Sphalerite

Gahnite
Gahnite



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Sphalerite
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Gahnite

Sphalerite and Gahnite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.95-4.104.00-4.62
1 7.18
👆🏻

Fracture

Uneven
Conchoidal, Uneven

Cleavage

{110} Perfect, {110} Perfect, {110} Perfect
Indistinct parting on [111]

Mohs Hardness

3.5-47.5-8
2 10
👆🏻

Chemical Composition

(Zn,Fe)SMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Sphalerite and Gahnite Chemical Formula

While comparing Sphalerite and Gahnite 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 Sphalerite and Gahnite chemical formula.

  • Chemical formula of Sphalerite- (Zn,Fe)SMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Sphalerite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sphalerite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.