Iddingsite and Powellite Physical Properties

Iddingsite

Powellite

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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

2.5-2.84.23

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{???} Perfect

{111} Distinct

1.7 Mohs Hardness

33.5-4

2 10

2.5 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

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

Iddingsite and Powellite Chemical Formula

While comparing Iddingsite and Powellite 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 Iddingsite and Powellite chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Iddingsite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 4.23 whereas that of Powellite is 4.23.