Marialite and Lepidolite Physical Properties

Marialite

Lepidolite

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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

2.50

2.80-2.90

1.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Distinct on {100} and {110}

{001} perfect

1.7 Mohs Hardness

5.5-6

2.5

1.8 Chemical Composition

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

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

Marialite and Lepidolite Chemical Formula

While comparing Marialite 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 Marialite and Lepidolite chemical formula.

Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.

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Marialite and Lepidolite Specific Gravity

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