Diaspore and Norbergite Physical Properties

Diaspore

Norbergite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Very brittle

insoluble

3.30-3.40

Conchoidal

{010} perfect, {110} distinct, {100} in traces

6.5-7

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

3.177

Uneven, Conchoidal

{???} Distinct

6-6.5

Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

Diaspore and Norbergite Chemical Formula

While comparing Diaspore 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 Diaspore and Norbergite chemical formula.

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Diaspore and Norbergite Specific Gravity

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