Powellite and Gahnospinel Physical Properties

Powellite

Gahnospinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.233.65-4.55

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{111} Distinct

None, but may exhibit slight parting

1.7 Mohs Hardness

3.5-47.5-8

2 10

1.8 Chemical Composition

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

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Powellite and Gahnospinel Chemical Formula

While comparing Powellite and Gahnospinel 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 Gahnospinel chemical formula.

Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Compare Blue Gemstones

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Powellite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Powellite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Powellite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.