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Spinel
Spinel

Smoky Quartz
Smoky Quartz



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Spinel
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Smoky Quartz

Spinel and Smoky Quartz Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
none
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.64-3.662.65
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
None, but may exhibit slight parting
{0110} Indistinct
1.7 Mohs Hardness
87
Amber
2 10
1.8 Chemical Composition
MgAl2O4
SiO2

Spinel and Smoky Quartz Chemical Formula

While comparing Spinel and Smoky Quartz 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 Smoky Quartz chemical formula.

  • Chemical formula of Spinel- MgAl2O4
  • Chemical formula of Smoky Quartz- SiO2

Spinel and Smoky Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.65 whereas that of Smoky Quartz is 2.65.