Norbergite and Agate Opal Physical Properties

Norbergite

Agate Opal

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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

3.1771.98-2.50

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

{???} Distinct

Not Available

1.7 Mohs Hardness

6-6.55.5-6.5

2 10

1.8 Chemical Composition

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

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Norbergite and Agate Opal Chemical Formula

While comparing Norbergite and Agate Opal 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 Agate Opal chemical formula.

Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Agate Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Norbergite and Agate Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Norbergite and Agate Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Norbergite and Agate Opal Optical Properties during the identification of gemstone. Specific gravity of Norbergite is 1.98-2.50 whereas that of Agate Opal is 1.98-2.50.