Bastnasite and Phenakite Physical Properties

Bastnasite

Phenakite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

4.95-5.02.90-2.98

1 7.18

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Fracture

Uneven

Conchoidal, ConchoidalWalter Schumann

Cleavage

Imperfect to indistinct on {10 1 0}, parting on {0001}

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

Mohs Hardness

4-57.5-8

2 10

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Chemical Composition

(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Bastnasite and Phenakite Chemical Formula

While comparing Bastnasite 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 Bastnasite and Phenakite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bastnasite and Phenakite Specific Gravity

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