Zinnwaldite and Liddicoatite Physical Properties

Zinnwaldite

Liddicoatite

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.13.02

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal {001}

{0001} Poor

1.7 Mohs Hardness

3.5-4.0Not Available

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Liddicoatite Chemical Formula

While comparing Zinnwaldite and Liddicoatite 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 Zinnwaldite and Liddicoatite 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)

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Zinnwaldite and Liddicoatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zinnwaldite and Liddicoatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zinnwaldite and Liddicoatite Optical Properties during the identification of gemstone. Specific gravity of Zinnwaldite is 3.02 whereas that of Liddicoatite is 3.02.