Hematite and Periclase Physical Properties

Hematite

Periclase

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.303.7-3.9

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Conchoidal, Brittle

1.6 Cleavage

None, may show partings on {0001} and {10 1 1}

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

1.7 Mohs Hardness

65.5-6

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Hematite and Periclase Chemical Formula

While comparing Hematite 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 Hematite and Periclase chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

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Hematite and Periclase Specific Gravity

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