Periclase and Orthoclase Physical Properties

Periclase

Orthoclase

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.7-3.92.54-2.61

1 7.18

1.5 Fracture

Conchoidal, Brittle

Gems, Uneven

1.6 Cleavage

{001} perfect; {111} imperfect, may exhibit parting on , {011}

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

5.5-66

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Periclase and Orthoclase Chemical Formula

While comparing Periclase and Orthoclase 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 Periclase and Orthoclase chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Periclase and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Periclase and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Periclase is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.