Periclase and Vivianite Physical Properties

Periclase

Vivianite

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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

3.7-3.92.64-2.70

1 7.18

1.5 Fracture

Conchoidal, Brittle

(e.g. graphite).

1.6 Cleavage

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

{010} Perfect

1.7 Mohs Hardness

5.5-6Not Available

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Periclase and Vivianite Chemical Formula

While comparing Periclase and Vivianite 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 Vivianite chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Periclase and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Periclase and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Periclase is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.