Pyrope Spessartine and Powellite Physical Properties

Pyrope Spessartine

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

3.62-4.33

4.23

1.5 Fracture

Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)

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

1.6 Cleavage

Not Available

{111} Distinct

1.7 Mohs Hardness

7-7.5

3.5-4

1.8 Chemical Composition

Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Pyrope Spessartine and Powellite Chemical Formula

While comparing Pyrope Spessartine 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 Pyrope Spessartine and Powellite chemical formula.

Chemical formula of Pyrope Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Pyrope Spessartine and Powellite Specific Gravity

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