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Jacobsite
Jacobsite

Jet
Jet



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Jacobsite
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Jet

Jacobsite and Jet Physical Properties

Jet
Jet
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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

4.76-5.031.19-1.35
1 7.18
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Fracture

Conchoidal
ConchoidalWalter Schumann

Cleavage

None
None

Mohs Hardness

5.5-6.52.5-4
2 10
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Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
C

Jacobsite and Jet Chemical Formula

While comparing Jacobsite 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 Jacobsite and Jet chemical formula.

  • Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Jet- C

Jacobsite and Jet Specific Gravity

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