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Baryte
Baryte

Petalite
Petalite



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Baryte and Petalite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Soluble
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.3-5
2.40
1.5 Fracture
Irregular/uneven
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
1.6 Cleavage
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
Perfect on {001}, poor on {201} with 38.5° angle between the two
1.7 Mohs Hardness
3-3.5
6-6.5
1.8 Chemical Composition
Not Available
LiAlSi 4O 10Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Baryte and Petalite Chemical Formula

While comparing Baryte and Petalite 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 Baryte and Petalite chemical formula.

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

Baryte and Petalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Baryte and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Baryte and Petalite Optical Properties during the identification of gemstone. Specific gravity of Baryte is 2.40 whereas that of Petalite is 2.40.

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