Periclase and Cryolite Physical Properties

Periclase

Cryolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.7-3.92.97

1 7.18

1.5 Fracture

Conchoidal, Brittle

Uneven

1.6 Cleavage

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

None observed

1.7 Mohs Hardness

5.5-62.5

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Na 3AlF 6Ulrich Henn and Claudio C.

Periclase and Cryolite Chemical Formula

While comparing Periclase and Cryolite 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 Cryolite chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

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Periclase and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Periclase and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Periclase is 2.97 whereas that of Cryolite is 2.97.