Chromite and Faustite Physical Properties

Chromite

Faustite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.82.9

1 7.18

1.5 Fracture

Uneven

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

None, parting may develop along {111}

{???} Indistinct

1.7 Mohs Hardness

5.54.5

2 10

1.8 Chemical Composition

Fe++Cr2O4

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

Chromite and Faustite Chemical Formula

While comparing Chromite and Faustite 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 Chromite and Faustite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Chromite and Faustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 2.9 whereas that of Faustite is 2.9.