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Jacobsite
Jacobsite

Polyhalite
Polyhalite



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Jacobsite
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Polyhalite

Jacobsite and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.76-5.03
Conchoidal
None
5.5-6.5
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Jacobsite and Polyhalite Chemical Formula

While comparing Jacobsite and Polyhalite 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 Polyhalite chemical formula.

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Jacobsite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite Vs Polyhalite during the identification of gemstone. Specific gravity of Jacobsite is whereas that of Polyhalite is .