Agate and Sugilite Physical Properties

Agate

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

2.60-2.64

2.69-2.79

1.5 Fracture

Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Indiscernible

Poor on {0001}

1.7 Mohs Hardness

6.5-7

5.5-6.5

1.8 Chemical Composition

SiO₂

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

Agate and Sugilite Chemical Formula

While comparing Agate 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 Agate and Sugilite chemical formula.

Chemical formula of Agate- SiO₂
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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Agate and Sugilite Specific Gravity

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