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Grandidierite
Grandidierite

Jacobsite
Jacobsite



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Grandidierite
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Jacobsite

Grandidierite and Jacobsite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.85-3.00
Uneven
Perfect
7.5
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
 
-
-
-
4.76-5.03
Conchoidal
None
5.5-6.5
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Grandidierite and Jacobsite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Jacobsite chemical formula.

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Grandidierite and Jacobsite Specific Gravity

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