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Petalite
Petalite

Euclase
Euclase



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Petalite
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Euclase

Petalite and Euclase Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
insoluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.403.08-3.12
Amber
1 7.18
1.5 Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
1.6 Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
{010} Perfect
1.7 Mohs Hardness
6-6.57.5
Amber
2 10
1.8 Chemical Composition
LiAlSi 4O 10Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
BeAlSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Petalite and Euclase Chemical Formula

While comparing Petalite and Euclase 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 Petalite and Euclase chemical formula.

  • Chemical formula of Petalite- LiAlSi 4O 10Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Euclase- BeAlSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Petalite and Euclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Petalite and Euclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Euclase Optical Properties during the identification of gemstone. Specific gravity of Petalite is 3.08-3.12 whereas that of Euclase is 3.08-3.12.