Norbergite and Prase Physical Properties

Norbergite

Prase

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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

3.1772.64-2.69

1 7.18

1.5 Fracture

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

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

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 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Norbergite and Prase Chemical Formula

While comparing Norbergite and Prase 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 Prase chemical formula.

Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Norbergite and Prase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Norbergite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Prase Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 2.64-2.69 whereas that of Prase is 2.64-2.69.