Norbergite and Rock Crystal Physical Properties

Norbergite

Rock Crystal

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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

3.1772.65

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{???} Distinct

Not Available

1.7 Mohs Hardness

6-6.57

2 10

1.8 Chemical Composition

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

SiO 2Walter Schumann , Gemstones of the world (2001)

Norbergite and Rock Crystal Chemical Formula

While comparing Norbergite and Rock Crystal 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 Rock Crystal chemical formula.

Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)

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Norbergite and Rock Crystal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Norbergite and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 2.65 whereas that of Rock Crystal is 2.65.