Liddicoatite and Opal Physical Properties

Liddicoatite

Opal

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1 Physical Properties

1.1 Tenacity

Not Available

BrittleWalter Schumann

1.2 Solubility

Not Available

hot salt water

1.3 Durability

Not Available

1.4 Specific Gravity

3.02

1.98-2.25

1.5 Fracture

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

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

1.6 Cleavage

{0001} Poor

None

1.7 Mohs Hardness

Not Available

5-6.5

1.8 Chemical Composition

Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

SiO₂ · nH₂O

Liddicoatite and Opal Chemical Formula

While comparing Liddicoatite and 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 Liddicoatite and Opal chemical formula.

Chemical formula of Liddicoatite- Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Opal- SiO₂ · nH₂O

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Liddicoatite and Opal Specific Gravity

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