Prasiolite and Oligoclase Physical Properties

Prasiolite

Oligoclase

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.652.62-2.67

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

3,1

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

76-6.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Prasiolite and Oligoclase Chemical Formula

While comparing Prasiolite 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 Prasiolite and Oligoclase chemical formula.

Chemical formula of Prasiolite- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Prasiolite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prasiolite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prasiolite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Prasiolite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.