Petalite and Baryte Physical Properties

Petalite

Baryte

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.404.3-5

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

Irregular/uneven

1.6 Cleavage

Perfect on {001}, poor on {201} with 38.5° angle between the two

Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect

1.7 Mohs Hardness

6-6.53-3.5

2 10

1.8 Chemical Composition

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Not Available

Petalite and Baryte Chemical Formula

While comparing Petalite and Baryte 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 Baryte chemical formula.

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

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Petalite and Baryte Specific Gravity

Another important criteria for qualitative analysis of gemstones is Petalite and Baryte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Baryte Optical Properties during the identification of gemstone. Specific gravity of Petalite is 4.3-5 whereas that of Baryte is 4.3-5.