Bastnasite and Amazonite Physical Properties

Bastnasite

Amazonite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

4.95-5.02.55-2.57

1 7.18

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Fracture

Uneven

Cleavage

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

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

Mohs Hardness

4-56-6.5

2 10

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Chemical Composition

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

KAlSi₃O₈

Bastnasite and Amazonite Chemical Formula

While comparing Bastnasite and Amazonite 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 Amazonite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Amazonite- KAlSi₃O₈

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Bastnasite and Amazonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Amazonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Amazonite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 2.55-2.57 whereas that of Amazonite is 2.55-2.57.