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Spinel
Spinel

Periclase
Periclase



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Spinel
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Periclase

Spinel and Periclase Physical Properties

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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
3.64-3.663.7-3.9
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle
1.6 Cleavage
None, but may exhibit slight parting
{001} perfect; {111} imperfect, may exhibit parting on , {011}
1.7 Mohs Hardness
85.5-6
Amber
2 10
1.8 Chemical Composition
MgAl2O4
MgOMichael O’Donoghue , Gems, Sixth Edition (2006)

Spinel and Periclase Chemical Formula

While comparing Spinel and Periclase 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 Periclase chemical formula.

  • Chemical formula of Spinel- MgAl2O4
  • Chemical formula of Periclase- MgOMichael O’Donoghue , Gems, Sixth Edition (2006)

Spinel and Periclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Periclase Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.7-3.9 whereas that of Periclase is 3.7-3.9.