Jade and Oligoclase Physical Properties

Jade

Oligoclase

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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

2.90-3.382.62-2.67

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

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

1.6 Cleavage

1 or 2,2 prismatic.

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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

Jade and Oligoclase Chemical Formula

While comparing Jade 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 Jade and Oligoclase chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Jade and Oligoclase Specific Gravity

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