Carnelian and Emerald Physical Properties

Carnelian

Emerald

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.58-2.64

2.67-2.78

1.5 Fracture

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

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Absent

Imperfect on the [0001]

1.7 Mohs Hardness

6.5-7

7.5-8

1.8 Chemical Composition

SiO₂

Be₃Al₂SiO₆

Carnelian and Emerald Chemical Formula

While comparing Carnelian and Emerald 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 Emerald chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Emerald- Be₃Al₂SiO₆

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Carnelian and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Emerald Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 2.67-2.78 whereas that of Emerald is 2.67-2.78.