Lepidolite and Prehnite Physical Properties

Lepidolite

Prehnite

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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

2.80-2.90

2.80-2.95

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

1.6 Cleavage

{001} perfect

Distinct on [001]

1.7 Mohs Hardness

2.5

6-6.5

1.8 Chemical Composition

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

Ca₂Al₂Si₃O₁₂(OH)

Lepidolite and Prehnite Chemical Formula

While comparing Lepidolite and Prehnite 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 Lepidolite and Prehnite chemical formula.

Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)

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Lepidolite and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lepidolite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lepidolite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Lepidolite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.