Pezzottaite and Periclase Physical Properties

Pezzottaite

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

2.90-3.143.7-3.9

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Conchoidal, Brittle

1.6 Cleavage

Imperfect; basal

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

1.7 Mohs Hardness

7.5-85.5-6

2 10

1.8 Chemical Composition

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Pezzottaite and Periclase Chemical Formula

While comparing Pezzottaite 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 Pezzottaite and Periclase chemical formula.

Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

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Pezzottaite and Periclase Specific Gravity

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