Periclase and Verdelite Physical Properties

Periclase

Verdelite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

3.7-3.9

Conchoidal

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

5.5-6

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

2.90-3.40

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Periclase and Verdelite Chemical Formula

While comparing Periclase and Verdelite 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 Verdelite chemical formula.

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Periclase and Verdelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Periclase and Verdelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase Vs Verdelite during the identification of gemstone. Specific gravity of Periclase is whereas that of Verdelite is .