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Spinel
Spinel

Carnelian
Carnelian



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Spinel
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Carnelian

Spinel and Carnelian Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
none
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.64-3.662.58-2.64
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
None, but may exhibit slight parting
Absent
1.7 Mohs Hardness
86.5-7
Amber
2 10
1.8 Chemical Composition
MgAl2O4
SiO2

Spinel and Carnelian Chemical Formula

While comparing Spinel and Carnelian 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 Spinel and Carnelian chemical formula.

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

Spinel and Carnelian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Carnelian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Carnelian Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.58-2.64 whereas that of Carnelian is 2.58-2.64.