Bastnasite and Amethyst Physical Properties

Bastnasite

Amethyst

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

4.95-5.02.65

1 7.18

1.5 Fracture

Uneven

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Indiscernible

1.7 Mohs Hardness

4-57

2 10

1.8 Chemical Composition

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

SiO₂

Bastnasite and Amethyst Chemical Formula

While comparing Bastnasite and Amethyst 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 Amethyst chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Amethyst- SiO₂

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Bastnasite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 2.65 whereas that of Amethyst is 2.65.