Ludlamite and Montebrasite Physical Properties

Ludlamite

Montebrasite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.1-3.22.98-3.10

1 7.18

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Fracture

Uneven, Conchoidal

Cleavage

Vitreous, pearly on cleavage

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

Mohs Hardness

3-45.5-6

2 10

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Chemical Composition

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael 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

Ludlamite and Montebrasite Chemical Formula

While comparing Ludlamite 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 Ludlamite and Montebrasite chemical formula.

Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael 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

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Ludlamite and Montebrasite Specific Gravity

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