Periclase and Feldspar Physical Properties

Periclase

Feldspar

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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

3.7-3.92.56-2.75

1 7.18

1.5 Fracture

Conchoidal, Brittle

Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

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

two or three

1.7 Mohs Hardness

5.5-66-6.5

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

Periclase and Feldspar Chemical Formula

While comparing Periclase and Feldspar 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 Feldspar chemical formula.

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

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Periclase and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Periclase and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Periclase is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.