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Jacobsite
Jacobsite

Pearl
Pearl



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Jacobsite
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Pearl

Jacobsite and Pearl Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

4.76-5.032.60-2.85
1 7.18
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Fracture

Conchoidal
-

Cleavage

None
none

Mohs Hardness

5.5-6.52.5-4.5
2 10
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Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
CaCO3

Jacobsite and Pearl Chemical Formula

While comparing Jacobsite and Pearl 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 Pearl chemical formula.

  • Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Pearl- CaCO3

Jacobsite and Pearl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Pearl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Pearl Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.60-2.85 whereas that of Pearl is 2.60-2.85.