Jet and Jacobsite Physical Properties

Jet

Jacobsite

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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

1.19-1.354.76-5.03

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

Not Available

None

1.7 Mohs Hardness

2.5-45.5-6.5

2 10

1.8 Chemical Composition

Not Available

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

Jet and Jacobsite Chemical Formula

While comparing Jet and Jacobsite 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 Jet and Jacobsite chemical formula.

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

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Jet and Jacobsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jet and Jacobsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jet and Jacobsite Optical Properties during the identification of gemstone. Specific gravity of Jet is 4.76-5.03 whereas that of Jacobsite is 4.76-5.03.