Powellite and Corundum Physical Properties

Powellite

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

4.233.90-4.05

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Uneven, Uneven, Gems, Difficult, Fibrous

1.6 Cleavage

{111} Distinct

None – parting in 3 directions

1.7 Mohs Hardness

3.5-49

2 10

1.8 Chemical Composition

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Al 2O 3Arthur Thomas , Gemstones (2009)

Powellite and Corundum Chemical Formula

While comparing Powellite 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 Powellite and Corundum chemical formula.

Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

Compare Blue Gemstones

Powellite Vs Rubellite

Powellite Vs Rock Crystal

Powellite Vs Sanidine

Powellite and Corundum Specific Gravity

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