Serandite and Precious Opal Physical Properties

Serandite

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

3.521.98-2.25

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)

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

1.6 Cleavage

{100} Perfect, {001} Perfect

Not Available

1.7 Mohs Hardness

5-5.55-6.5

2 10

1.8 Chemical Composition

Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Serandite and Precious Opal Chemical Formula

While comparing Serandite 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 Serandite and Precious Opal chemical formula.

Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

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Serandite and Precious Opal Specific Gravity

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