Sylvite and Lepidolite Physical Properties

Sylvite

Lepidolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.9932.80-2.90

1 7.18

1.5 Fracture

Uneven, Brittle

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on [100], [010], [001]

{001} perfect

1.7 Mohs Hardness

2.52.5

2 10

1.8 Chemical Composition

Not Available

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

Sylvite and Lepidolite Chemical Formula

While comparing Sylvite 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 Sylvite and Lepidolite chemical formula.

Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.

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Sylvite and Lepidolite Specific Gravity

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