Glaucophane and Oligoclase Physical Properties

Glaucophane

Oligoclase

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1 Physical Properties

1.2 Tenacity

Not Available

1.3 Solubility

Not Available

1.6 Durability

Not Available

1.8 Specific Gravity

3-3.152.62-2.67

1 7.18

1.12 Fracture

Conchoidal, Brittle, Conchoidal

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

1.13 Cleavage

Good on [110] and on [001]

From the Greek, oligos and kasein, little cleavage.

1.14 Mohs Hardness

6.0-6.56-6.5

2 10

1.16 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

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

Glaucophane and Oligoclase Chemical Formula

While comparing Glaucophane 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 Glaucophane and Oligoclase chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Glaucophane and Oligoclase Specific Gravity

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