Bastnasite and Chrysoberyl Physical Properties

Bastnasite

Chrysoberyl

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

4.95-5.03.69-3.81

1 7.18

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Fracture

Uneven

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Cleavage

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

Distinct on {110}, imperfect on {010}, poor on {001}

Mohs Hardness

4-58.5

2 10

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Chemical Composition

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

BeAl ₂ O ₄

Bastnasite and Chrysoberyl Chemical Formula

While comparing Bastnasite and Chrysoberyl 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 Chrysoberyl chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Chrysoberyl- BeAl ₂ O ₄

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Bastnasite and Chrysoberyl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Chrysoberyl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Chrysoberyl Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 3.69-3.81 whereas that of Chrysoberyl is 3.69-3.81.