Bastnasite and Demantoid Physical Properties

Bastnasite

Demantoid

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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

4.95-5.03.77-3.95

1 7.18

1.5 Fracture

Uneven

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

4-56.5

2 10

1.8 Chemical Composition

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

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Bastnasite and Demantoid Chemical Formula

While comparing Bastnasite and Demantoid 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 Demantoid chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

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Bastnasite and Demantoid Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Demantoid Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Demantoid Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 3.77-3.95 whereas that of Demantoid is 3.77-3.95.