Bastnasite and Sphalerite Physical Properties

Bastnasite

Sphalerite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

4.95-5.03.95-4.10

1 7.18

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Fracture

Uneven

Cleavage

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

{110} Perfect, {110} Perfect, {110} Perfect

Mohs Hardness

4-53.5-4

2 10

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Chemical Composition

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

(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bastnasite and Sphalerite Chemical Formula

While comparing Bastnasite and Sphalerite 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 Sphalerite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bastnasite and Sphalerite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Sphalerite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Sphalerite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 3.95-4.10 whereas that of Sphalerite is 3.95-4.10.