Oligoclase and Scheelite Physical Properties

Oligoclase

Scheelite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.62-2.675.9-6.3

1 7.18

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Fracture

Uneven

Conchoidal, Uneven

Cleavage

From the Greek, oligos and kasein, little cleavage.

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

Mohs Hardness

6-6.54.5-5

2 10

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Chemical Composition

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

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Oligoclase and Scheelite Chemical Formula

While comparing Oligoclase and Scheelite 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 Scheelite 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 Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Colorless Gems

Oligoclase Vs Zektzerite

Oligoclase Vs Taaffeite

Oligoclase Vs Muscovite

Oligoclase and Scheelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.