Carnallite and Powellite Physical Properties

Carnallite

Powellite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.6

4.23

1.5 Fracture

Violet, Conchoidal, Brittle, Conchoidal, Brittle

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

1.6 Cleavage

None

{111} Distinct

1.7 Mohs Hardness

2.5

3.5-4

1.8 Chemical Composition

KMgCl3•6(H2O)

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

Carnallite and Powellite Chemical Formula

While comparing Carnallite 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 Carnallite and Powellite chemical formula.

Chemical formula of Carnallite- KMgCl3•6(H2O)
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Red Gemstones

Carnallite Vs Polyhalite

Carnallite Vs Phlogopite

Carnallite Vs Nickeline

Carnallite and Powellite Specific Gravity

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

Red Gemstones

Piemontite

Erythrite

Kainite

Langbeinite

Nickeline

Phlogopite