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Montebrasite
Montebrasite

Andalusite
Andalusite



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Montebrasite
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Montebrasite and Andalusite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.98-3.10
3.05-3.21
1.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
{100} Perfect, {110} Good, {011} Distinct
Good on {110}, poor on {100}
1.7 Mohs Hardness
5.5-6
7.5
1.8 Chemical Composition
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Montebrasite and Andalusite Chemical Formula

While comparing Montebrasite and Andalusite 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 Andalusite 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 Andalusite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Montebrasite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Montebrasite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Montebrasite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.

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