Faustite and Fluorapatite Physical Properties

Faustite

Fluorapatite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.2 Specific Gravity

2.93.1-3.25

1 7.18

1.6 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

1.7 Cleavage

{???} Indistinct

Indistinct

1.8 Mohs Hardness

4.55

2 10

1.11 Chemical Composition

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

Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Faustite and Fluorapatite Chemical Formula

While comparing Faustite and Fluorapatite 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 Fluorapatite 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 Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

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Faustite Vs Gaspite

Faustite and Fluorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Fluorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Fluorapatite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 3.1-3.25 whereas that of Fluorapatite is 3.1-3.25.