Carnelian and Cinnabar Physical Properties

Carnelian

Cinnabar

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1 Physical Properties

1.1 Tenacity

Not Available

Slightly sectile

1.2 Solubility

Not Available

1.04 x 10⁻²⁵ g per 100 ml water (Ksp at 25°C = 2 x 10⁻³²)

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.64

1.5 Fracture

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

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

Absent

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

6.5-7

2-2.5

1.8 Chemical Composition

SiO₂

HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Carnelian and Cinnabar Chemical Formula

While comparing Carnelian and Cinnabar 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 Cinnabar chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Carnelian Vs Prasiolite

Carnelian Vs Kunzite

Carnelian Vs Quartz

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Carnelian and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 2 whereas that of Cinnabar is 2.