Wood Opal and Aragonite Physical Properties

Wood Opal

Aragonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.502.93-2.96

1 7.18

1.5 Fracture

Not Available

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Not Available

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

5.5-6.53.5-4

2 10

1.8 Chemical Composition

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

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Wood Opal and Aragonite Chemical Formula

While comparing Wood Opal and Aragonite 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 Wood Opal and Aragonite chemical formula.

Chemical formula of Wood Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems Found In Australia

Wood Opal Vs Druzy

Wood Opal Vs Alunite

Wood Opal Vs Canadian Ammolite

Wood Opal and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wood Opal and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wood Opal and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Wood Opal is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.