Wardite and Corundum Physical Properties

Wardite

Corundum

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.813.90-4.05

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Uneven, Gems, Difficult, Fibrous

1.6 Cleavage

{001} Perfect

None – parting in 3 directions

1.7 Mohs Hardness

4.5-59

2 10

1.8 Chemical Composition

NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Al 2O 3Arthur Thomas , Gemstones (2009)

Wardite and Corundum Chemical Formula

While comparing Wardite 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 Wardite and Corundum chemical formula.

Chemical formula of Wardite- NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

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Wardite and Corundum Specific Gravity

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