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Carnelian
Carnelian

Spinel
Spinel



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Carnelian
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Spinel

Carnelian and Spinel Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
none
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.58-2.643.64-3.66
Amber
1 7.18
1.5 Fracture
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Absent
None, but may exhibit slight parting
1.7 Mohs Hardness
6.5-78
Amber
2 10
1.8 Chemical Composition
SiO2
MgAl2O4

Carnelian and Spinel Chemical Formula

While comparing Carnelian and Spinel 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 Spinel chemical formula.

  • Chemical formula of Carnelian- SiO2
  • Chemical formula of Spinel- MgAl2O4

Carnelian and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Spinel Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 3.64-3.66 whereas that of Spinel is 3.64-3.66.