Liddicoatite and Onyx Physical Properties

Liddicoatite

Onyx

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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

3.022.55-2.70

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{0001} Poor

Indiscernible

1.7 Mohs Hardness

Not Available6.5-7

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)

SiO₂

Liddicoatite and Onyx Chemical Formula

While comparing Liddicoatite and Onyx 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 Onyx 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 Onyx- SiO₂

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Liddicoatite and Onyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Liddicoatite and Onyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Onyx Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 2.55-2.70 whereas that of Onyx is 2.55-2.70.