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Smithsonite
Smithsonite

Spinel
Spinel



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Smithsonite
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Spinel

Smithsonite and Spinel Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
none
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.00-4.653.64-3.66
Amber
1 7.18
1.5 Fracture
Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Perfect on [1011]
None, but may exhibit slight parting
1.7 Mohs Hardness
5-5.58
Amber
2 10
1.8 Chemical Composition
ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
MgAl2O4

Smithsonite and Spinel Chemical Formula

While comparing Smithsonite 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 Smithsonite and Spinel chemical formula.

  • Chemical formula of Smithsonite- ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Spinel- MgAl2O4

Smithsonite and Spinel Specific Gravity

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