Carnelian and Hackmanite Physical Properties

Carnelian

Hackmanite

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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

2.27-2.33

1.5 Fracture

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

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Absent

Not Available

1.7 Mohs Hardness

6.5-7

5.5-6

1.8 Chemical Composition

SiO₂

Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Carnelian and Hackmanite Chemical Formula

While comparing Carnelian and Hackmanite 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 Hackmanite chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Carnelian and Hackmanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.