Sylvite and Periclase Physical Properties

Sylvite

Periclase

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.9933.7-3.9

1 7.18

1.5 Fracture

Uneven, Brittle

Conchoidal, Brittle

1.6 Cleavage

Perfect on [100], [010], [001]

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

1.7 Mohs Hardness

2.55.5-6

2 10

1.8 Chemical Composition

Not Available

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Sylvite and Periclase Chemical Formula

While comparing Sylvite 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 Sylvite and Periclase chemical formula.

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

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Sylvite and Periclase Specific Gravity

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