Verdelite and Oligoclase Physical Properties

Verdelite

Oligoclase

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.40

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

2.62-2.67

Uneven

From the Greek, oligos and kasein, little cleavage.

6-6.5

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

Verdelite and Oligoclase Chemical Formula

While comparing Verdelite and Oligoclase 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 Verdelite and Oligoclase chemical formula.

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Verdelite and Oligoclase Specific Gravity

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