Hauyne and Corundum Physical Properties

Hauyne

Corundum

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Gelatinises in acids

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.4-2.53.90-4.05

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Uneven, Uneven, Gems, Difficult, Fibrous

1.6 Cleavage

Distinct on {110}

None – parting in 3 directions

1.7 Mohs Hardness

5-69

2 10

1.8 Chemical Composition

(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

Al 2O 3Arthur Thomas , Gemstones (2009)

Hauyne and Corundum Chemical Formula

While comparing Hauyne and Corundum 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 Hauyne and Corundum chemical formula.

Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

Compare Blue Gemstones

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Hauyne Vs Scorodite

Hauyne Vs Rosasite

Hauyne and Corundum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hauyne and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hauyne and Corundum Optical Properties during the identification of gemstone. Specific gravity of Hauyne is 3.90-4.05 whereas that of Corundum is 3.90-4.05.