Arfvedsonite and Sugilite Physical Properties

Arfvedsonite

Sugilite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.3-3.52.69-2.79

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

Perfect on [110]

Poor on {0001}

1.7 Mohs Hardness

5-65.5-6.5

2 10

1.8 Chemical Composition

NaNa2(Fe++4Fe+++)Si8O22(OH)2

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

Arfvedsonite and Sugilite Chemical Formula

While comparing Arfvedsonite 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 Arfvedsonite and Sugilite chemical formula.

Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2
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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Arfvedsonite and Sugilite Specific Gravity

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