Arfvedsonite and Powellite Physical Properties

Arfvedsonite

Powellite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.3-3.54.23

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

Perfect on [110]

{111} Distinct

1.7 Mohs Hardness

5-63.5-4

2 10

1.8 Chemical Composition

NaNa2(Fe++4Fe+++)Si8O22(OH)2

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

Arfvedsonite and Powellite Chemical Formula

While comparing Arfvedsonite 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 Arfvedsonite and Powellite chemical formula.

Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

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Arfvedsonite and Powellite Specific Gravity

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