Oligoclase and Tantalite Physical Properties

Oligoclase

Tantalite

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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

2.62-2.675.2

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

Good in one direction

1.7 Mohs Hardness

6-6.56-6.5

2 10

1.8 Chemical Composition

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

(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Oligoclase and Tantalite Chemical Formula

While comparing Oligoclase and Tantalite 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 Tantalite 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 Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Compare Colorless Gems

Oligoclase Vs Phenakite

Oligoclase Vs Phosphophyllite

Oligoclase Vs Pezzottaite

Oligoclase and Tantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 5.2 whereas that of Tantalite is 5.2.