Liddicoatite and Phenakite Physical Properties

Liddicoatite

Phenakite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.022.90-2.98

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

1.6 Cleavage

{0001} Poor

Distinct on {11 2 0}, imperfect on {10 1 1}

1.7 Mohs Hardness

Not Available7.5-8

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)

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Liddicoatite and Phenakite Chemical Formula

While comparing Liddicoatite and Phenakite 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 Phenakite 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 Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Liddicoatite and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Liddicoatite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.