Liddicoatite and Boulder Opal Physical Properties

Liddicoatite

Boulder 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

3.021.98-2.25

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{0001} Poor

Not Available

1.7 Mohs Hardness

Not Available5-6.5

2 10

1.8 Chemical Composition

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

SiO 2 + H 2OUlrich Henn and Claudio C.

Liddicoatite and Boulder Opal Chemical Formula

While comparing Liddicoatite and Boulder 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 Boulder 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 Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Liddicoatite and Boulder Opal Specific Gravity

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