Magnesite and Powellite Physical Properties

Magnesite

Powellite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in hot HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.92-3.124.23

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[10 1 1] perfect

{111} Distinct

1.7 Mohs Hardness

3.5-4.53.5-4

2 10

1.8 Chemical Composition

MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Magnesite and Powellite Chemical Formula

While comparing Magnesite 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 Magnesite and Powellite chemical formula.

Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Magnesite and Powellite Specific Gravity

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