Glaucophane and Sugilite Physical Properties

Glaucophane

Sugilite

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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

3-3.152.69-2.79

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

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

1.6 Cleavage

Good on [110] and on [001]

Poor on {0001}

1.7 Mohs Hardness

6.0-6.55.5-6.5

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

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

Glaucophane and Sugilite Chemical Formula

While comparing Glaucophane 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 Glaucophane and Sugilite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)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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Glaucophane and Sugilite Specific Gravity

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