Opal and Wardite Physical Properties

Opal

Wardite

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1 Physical Properties

1.1 Tenacity

BrittleWalter Schumann

Not Available

1.2 Solubility

hot salt water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.252.81

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

{001} Perfect

1.7 Mohs Hardness

5-6.54.5-5

2 10

1.8 Chemical Composition

SiO₂ · nH₂O

NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Opal and Wardite Chemical Formula

While comparing Opal and Wardite 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 Opal and Wardite chemical formula.

Chemical formula of Opal- SiO₂ · nH₂O
Chemical formula of Wardite- NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Semi Precious Gemstones

Opal Vs Amethyst

Opal Vs Alexandrite

Opal Vs Lehsunia

Opal and Wardite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Wardite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Wardite Optical Properties during the identification of gemstone. Specific gravity of Opal is 2.81 whereas that of Wardite is 2.81.