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Montebrasite
Montebrasite

Covellite
Covellite



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Montebrasite
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Covellite

Montebrasite and Covellite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Flexible
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.98-3.104.6-4.76
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
1.6 Cleavage
{100} Perfect, {110} Good, {011} Distinct
Perfect on {0001}
1.7 Mohs Hardness
5.5-6Not Available
Amber
2 10
1.8 Chemical Composition
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Montebrasite and Covellite Chemical Formula

While comparing Montebrasite and Covellite 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 Covellite 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 Covellite- CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Montebrasite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Montebrasite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Montebrasite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Montebrasite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.