Riebeckite and Periclase Physical Properties

Riebeckite

Periclase

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.443.7-3.9

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

Conchoidal, Brittle

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

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

1.7 Mohs Hardness

5.0-6.05.5-6

2 10

1.8 Chemical Composition

Not Available

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Riebeckite and Periclase Chemical Formula

While comparing Riebeckite 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 Riebeckite and Periclase chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

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Riebeckite and Periclase Specific Gravity

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