Pyrope and Sugilite Physical Properties

Pyrope

Sugilite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-3.872.69-2.79

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Poor on {0001}

1.7 Mohs Hardness

7-7.55.5-6.5

2 10

1.8 Chemical Composition

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

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pyrope and Sugilite Chemical Formula

While comparing Pyrope and Sugilite 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 and Sugilite chemical formula.

Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Pyrope and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.