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Zinnwaldite
Zinnwaldite

Norbergite
Norbergite



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Zinnwaldite
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Norbergite

Zinnwaldite and Norbergite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Elastic
-
-
2.9-3.1
Uneven
Perfect basal {001}
3.5-4.0
-
 
-
-
-
3.177
Uneven, Conchoidal
{???} Distinct
6-6.5
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

Zinnwaldite and Norbergite Chemical Formula

While comparing Zinnwaldite 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 Zinnwaldite and Norbergite chemical formula.

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Zinnwaldite and Norbergite Specific Gravity

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