Glaucophane and Hercynite Physical Properties

Glaucophane

Hercynite

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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

3-3.154.39

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

ConchoidalGemdat.org, Uneven

1.6 Cleavage

Good on [110] and on [001]

{111} Indistinct, {111} Indistinct, {111} Indistinct

1.7 Mohs Hardness

6.0-6.57.5-8

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

Glaucophane and Hercynite Chemical Formula

While comparing Glaucophane and Hercynite 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 Hercynite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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Glaucophane and Hercynite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 4.39 whereas that of Hercynite is 4.39.