Oligoclase and Sugilite Physical Properties

Oligoclase

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

2.62-2.672.69-2.79

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

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

1.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

Poor on {0001}

1.7 Mohs Hardness

6-6.55.5-6.5

2 10

1.8 Chemical Composition

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Oligoclase and Sugilite Chemical Formula

While comparing Oligoclase 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 Oligoclase and Sugilite chemical formula.

Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Colorless Gems

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Oligoclase Vs Phenakite

Oligoclase Vs Pezzottaite

Oligoclase and Sugilite Specific Gravity

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