Petalite and Moss Agate Physical Properties

Petalite

Moss Agate

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.402.58-2.64

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

6-6.56.5-7

2 10

1.8 Chemical Composition

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

SiO 2Walter Schumann , Gemstones of the world (2001)

Petalite and Moss Agate Chemical Formula

While comparing Petalite and Moss Agate 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 Moss Agate chemical formula.

Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Moss Agate- SiO 2Walter Schumann , Gemstones of the world (2001)

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Petalite and Moss Agate Specific Gravity

Another important criteria for qualitative analysis of gemstones is Petalite and Moss Agate Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Petalite and Moss Agate Optical Properties during the identification of gemstone. Specific gravity of Petalite is 2.58-2.64 whereas that of Moss Agate is 2.58-2.64.