Glaucophane and Fayalite Physical Properties

Glaucophane

Fayalite

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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

3-3.154.392

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

Good on [110] and on [001]

{010} moderate, {100} imperfect

1.7 Mohs Hardness

6.0-6.56.5-7

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Glaucophane and Fayalite Chemical Formula

While comparing Glaucophane and Fayalite 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 Fayalite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Glaucophane and Fayalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 4.392 whereas that of Fayalite is 4.392.