Bastnasite and Fluorite Physical Properties

Bastnasite

Fluorite

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Physical Properties

Tenacity

Brittle

Solubility

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

4.95-5.03.00-3.25

1 7.18

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Fracture

Uneven

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

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

Octahedral, perfect on {111}, parting on {011}

Mohs Hardness

4-54

2 10

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Chemical Composition

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

CaF₂

Bastnasite and Fluorite Chemical Formula

While comparing Bastnasite and Fluorite 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 Fluorite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Fluorite- CaF₂

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Bastnasite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.