Bustamite and Fluorite Physical Properties

Bustamite

Fluorite

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Physical Properties

Tenacity

Brittle

Solubility

Partly soluble in HCl.

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

3.32-3.433.00-3.25

1 7.18

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Fracture

Conchoidal

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

{100} perfect; {110} and {1 1 0} good; {010} poor

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

Mohs Hardness

5.5-64

2 10

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Chemical Composition

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

CaF₂

Bustamite and Fluorite Chemical Formula

While comparing Bustamite 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 Bustamite and Fluorite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Fluorite- CaF₂

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Bustamite and Fluorite Specific Gravity

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