Sard and Bastnasite Physical Properties

Sard

Bastnasite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.634.95-5.0

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Uneven

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

6.5-74-5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sard and Bastnasite Chemical Formula

While comparing Sard and Bastnasite 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 Sard and Bastnasite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sard and Bastnasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Bastnasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Bastnasite Optical Properties during the identification of gemstone. Specific gravity of Sard is 4.95-5.0 whereas that of Bastnasite is 4.95-5.0.