Leucite and Montebrasite Physical Properties

Leucite

Montebrasite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.45-2.502.98-3.10

1 7.18

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Fracture

Conchoidal

Uneven, Conchoidal

Cleavage

Poor on {110}

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

Mohs Hardness

5.5-65.5-6

2 10

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Chemical Composition

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

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

Leucite and Montebrasite Chemical Formula

While comparing Leucite and Montebrasite 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 Leucite and Montebrasite chemical formula.

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

Compare White Gemstones

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Leucite Vs Pollucite

Leucite and Montebrasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Leucite and Montebrasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Leucite and Montebrasite Optical Properties during the identification of gemstone. Specific gravity of Leucite is 2.98-3.10 whereas that of Montebrasite is 2.98-3.10.