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Spinel
Spinel

Witherite
Witherite



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Spinel
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Witherite

Spinel and Witherite 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
3.64-3.664.27-4.35
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
None, but may exhibit slight parting
{010} Distinct
1.7 Mohs Hardness
83-3.5
Amber
2 10
1.8 Chemical Composition
MgAl2O4
BaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Spinel and Witherite Chemical Formula

While comparing Spinel and Witherite 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 Witherite chemical formula.

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

Spinel and Witherite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Witherite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Witherite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 4.27-4.35 whereas that of Witherite is 4.27-4.35.