Faustite and Fluorite Physical Properties

Faustite

Fluorite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

2.93.00-3.25

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

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

1.6 Cleavage

{???} Indistinct

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

1.7 Mohs Hardness

4.54

2 10

1.8 Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

CaF₂

Faustite and Fluorite Chemical Formula

While comparing Faustite 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 Faustite and Fluorite chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Fluorite- CaF₂

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Faustite and Fluorite Specific Gravity

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