Vishnevite and Periclase Physical Properties

Vishnevite

Periclase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.7-3.9

1 7.18

1.5 Fracture

Brittle, Uneven

Conchoidal, Brittle

1.6 Cleavage

Perfect

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

1.7 Mohs Hardness

5-65.5-6

2 10

1.8 Chemical Composition

Not Available

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Vishnevite and Periclase Chemical Formula

While comparing Vishnevite 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 Vishnevite and Periclase chemical formula.

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

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Vishnevite and Periclase Specific Gravity

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