Montebrasite and Pyroxmangite Physical Properties

Montebrasite

Pyroxmangite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.98-3.103.76-3.77

1 7.18

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Fracture

Uneven, Conchoidal

Cleavage

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

{110} Perfect, {110} Perfect

Mohs Hardness

5.5-65-6

2 10

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Chemical Composition

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

(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.

Montebrasite and Pyroxmangite Chemical Formula

While comparing Montebrasite and Pyroxmangite 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 Pyroxmangite 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 Pyroxmangite- (Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.

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Montebrasite and Pyroxmangite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Montebrasite and Pyroxmangite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite and Pyroxmangite Optical Properties during the identification of gemstone. Specific gravity of Montebrasite is 3.76-3.77 whereas that of Pyroxmangite is 3.76-3.77.