Dravite and Leucite Physical Properties

Dravite

Leucite

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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

3.03-3.182.45-2.50

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{???} Indistinct

Poor on {110}

1.7 Mohs Hardness

7-7.55.5-6

2 10

1.8 Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Dravite and Leucite Chemical Formula

While comparing Dravite 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 Dravite and Leucite chemical formula.

Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Leucite- KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Dravite and Leucite Specific Gravity

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