Norbergite and Pearl Physical Properties

Norbergite

Pearl

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.177

2.60-2.85

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

{???} Distinct

none

1.7 Mohs Hardness

6-6.5

2.5-4.5

1.8 Chemical Composition

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

Not Available

Norbergite and Pearl Chemical Formula

While comparing Norbergite and Pearl 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 Norbergite and Pearl chemical formula.

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

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Norbergite and Pearl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Norbergite and Pearl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Pearl Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 2.60-2.85 whereas that of Pearl is 2.60-2.85.