Bastnasite and Lazulite Physical Properties

Bastnasite

Lazulite

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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

4.95-5.03.04-3.17

1 7.18

1.5 Fracture

Uneven

Uneven, Uneven, Gemstones of the world (2001) More from other references

1.6 Cleavage

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

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

4-55.5

2 10

1.8 Chemical Composition

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

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Bastnasite and Lazulite Chemical Formula

While comparing Bastnasite and Lazulite 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 Lazulite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Bastnasite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.