Linarite and Lepidolite Physical Properties

Linarite

Lepidolite

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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

5.352.80-2.90

1 7.18

1.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on {100}, imperfect on {001}

{001} perfect

1.7 Mohs Hardness

2.52.5

2 10

1.8 Chemical Composition

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

Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.

Linarite and Lepidolite Chemical Formula

While comparing Linarite and Lepidolite 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 Lepidolite chemical formula.

Chemical formula of Linarite- PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.

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Linarite and Lepidolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Linarite and Lepidolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Linarite and Lepidolite Optical Properties during the identification of gemstone. Specific gravity of Linarite is 2.80-2.90 whereas that of Lepidolite is 2.80-2.90.