Andradite and Leucite Physical Properties

Andradite

Leucite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-4.102.45-2.50

1 7.18

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

none

Poor on {110}

1.7 Mohs Hardness

6.5-75.5-6

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Andradite and Leucite Chemical Formula

While comparing Andradite and Leucite 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 Andradite and Leucite chemical formula.

Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Leucite- KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Andradite and Leucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite and Leucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Leucite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.45-2.50 whereas that of Leucite is 2.45-2.50.