Carnelian and Chalcedony Physical Properties

Carnelian

Chalcedony

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.64

2.55-2.70

1.5 Fracture

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

Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann

1.6 Cleavage

Absent

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

SiO₂

Carnelian and Chalcedony Chemical Formula

While comparing Carnelian and Chalcedony 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 Chalcedony chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Chalcedony- SiO₂

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Carnelian and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.