Carnelian and Pezzottaite Physical Properties

Carnelian

Pezzottaite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.64

2.90-3.14

1.5 Fracture

Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Absent

Imperfect; basal

1.7 Mohs Hardness

6.5-7

7.5-8

1.8 Chemical Composition

SiO₂

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Carnelian and Pezzottaite Chemical Formula

While comparing Carnelian and Pezzottaite 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 Carnelian and Pezzottaite chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

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Carnelian and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.