Zincite and Petalite Physical Properties

Zincite

Petalite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.50-5.902.40

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

On {10 1 0}, perfect; parting on {000 1 }

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

1.7 Mohs Hardness

46-6.5

2 10

1.8 Chemical Composition

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Zincite and Petalite Chemical Formula

While comparing Zincite 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 Zincite and Petalite chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

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Zincite Vs Tourmaline Bi Color

Zincite Vs Idocrase

Zincite and Petalite Specific Gravity

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