Grandidierite and Bastnasite Physical Properties

Grandidierite

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

2.85-3.004.95-5.0

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

Uneven

1.6 Cleavage

Perfect

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

1.7 Mohs Hardness

7.54-5

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Bastnasite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Bastnasite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich 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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Grandidierite and Bastnasite Specific Gravity

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