Spinel and Periclase Physical Properties

Spinel

Periclase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.663.7-3.9

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

2 10

1.8 Chemical Composition

MgAl₂O₄

MgOMichael OâDonoghue , 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 OâDonoghue , Gems, Sixth Edition (2006)

Compare Gems for Scorpio

Spinel Vs Ametrine

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Spinel Vs Charoite

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.