Faustite and Hibonite Physical Properties

Faustite

Hibonite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93.84

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

{???} Indistinct

{0001} good, {10 1 0} parting

1.7 Mohs Hardness

4.57.5-8

2 10

1.8 Chemical Composition

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

(Ca,Ce)(Al,Ti,Mg)12O19

Faustite and Hibonite Chemical Formula

While comparing Faustite and Hibonite 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 Hibonite 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 Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19

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Faustite and Hibonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 3.84 whereas that of Hibonite is 3.84.