Bastnasite and Adamite Physical Properties

Bastnasite

Adamite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.95-5.04.32-4.48

1 7.18

1.5 Fracture

Uneven

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

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

{101}, good; {010}, poor

1.7 Mohs Hardness

4-53.5

2 10

1.8 Chemical Composition

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

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

Bastnasite and Adamite Chemical Formula

While comparing Bastnasite and Adamite 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 Adamite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

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Bastnasite and Adamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Adamite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 4.32-4.48 whereas that of Adamite is 4.32-4.48.