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Sphalerite
Sphalerite

Jet
Jet



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Sphalerite
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Jet

Sphalerite and Jet Physical Properties

Jet
Jet
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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.95-4.101.19-1.35
1 7.18
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Fracture

Uneven
ConchoidalWalter Schumann

Cleavage

{110} Perfect, {110} Perfect, {110} Perfect
None

Mohs Hardness

3.5-42.5-4
2 10
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Chemical Composition

(Zn,Fe)SMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
C

Sphalerite and Jet Chemical Formula

While comparing Sphalerite and Jet 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 Jet chemical formula.

  • Chemical formula of Sphalerite- (Zn,Fe)SMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Jet- C

Sphalerite and Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sphalerite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Jet Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 1.19-1.35 whereas that of Jet is 1.19-1.35.