Linarite and Chromite Physical Properties

Linarite

Chromite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.354.5-4.8

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

Perfect on {100}, imperfect on {001}

None, parting may develop along {111}

1.7 Mohs Hardness

2.55.5

2 10

1.8 Chemical Composition

PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Fe++Cr2O4

Linarite and Chromite Chemical Formula

While comparing Linarite and Chromite 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 Linarite and Chromite chemical formula.

Chemical formula of Linarite- PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Chromite- Fe++Cr2O4

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Linarite and Chromite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Linarite and Chromite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Linarite and Chromite Optical Properties during the identification of gemstone. Specific gravity of Linarite is 4.5-4.8 whereas that of Chromite is 4.5-4.8.