Phenakite and Glaucophane Physical Properties

Phenakite

Glaucophane

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-2.983-3.15

1 7.18

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Fracture

Conchoidal, ConchoidalWalter Schumann

Conchoidal

Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}

Good on [110] and on [001]

Mohs Hardness

7.5-86.0-6.5

2 10

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Chemical Composition

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

[ ]Na2(Mg3Al2)Si8O22(OH)2

Phenakite and Glaucophane Chemical Formula

While comparing Phenakite and Glaucophane 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 Phenakite and Glaucophane chemical formula.

Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2

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Phenakite and Glaucophane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 3-3.15 whereas that of Glaucophane is 3-3.15.