Sugilite and Pyrope Physical Properties

Sugilite

Pyrope

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.69-2.793.62-3.87

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Poor on {0001}

None

1.7 Mohs Hardness

5.5-6.57-7.5

2 10

1.8 Chemical Composition

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

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

Sugilite and Pyrope Chemical Formula

While comparing Sugilite and Pyrope 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 Sugilite and Pyrope chemical formula.

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

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Sugilite and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sugilite and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.