Montebrasite and Leucite Physical Properties

Montebrasite

Leucite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.98-3.102.45-2.50

1 7.18

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Fracture

Uneven, Conchoidal

Conchoidal

Cleavage

{100} Perfect, {110} Good, {011} Distinct

Poor on {110}

Mohs Hardness

5.5-65.5-6

2 10

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Chemical Composition

LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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

Montebrasite and Leucite Chemical Formula

While comparing Montebrasite 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 Montebrasite and Leucite chemical formula.

Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Leucite- KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Montebrasite and Leucite Specific Gravity

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