Friedelite and Precious Opal Physical Properties

Friedelite

Precious 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

3.06-3.191.98-2.25

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references

1.6 Cleavage

{010} Perfect

Not Available

1.7 Mohs Hardness

4-55-6.5

2 10

1.8 Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

SiO 2 · nH 2OGemdat.org , Management Team (2012)

Friedelite and Precious Opal Chemical Formula

While comparing Friedelite and Precious 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 Friedelite and Precious Opal chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

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Friedelite and Precious Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Friedelite and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Friedelite and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Friedelite is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.