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Grandidierite
Grandidierite
☒

Norbergite
Norbergite
☒



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Grandidierite
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Norbergite

Grandidierite and Norbergite 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.
 
-
-
-
3.177
Uneven, Conchoidal
{???} Distinct
6-6.5
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

Grandidierite and Norbergite Chemical Formula

While comparing Grandidierite and Norbergite 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 Norbergite chemical formula.

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Grandidierite and Norbergite Specific Gravity

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