Glaucophane and Brucite Physical Properties

Glaucophane

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3-3.152.39

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Irregular

1.6 Cleavage

Good on [110] and on [001]

Perfect on {0001}

1.7 Mohs Hardness

6.0-6.52.5

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Glaucophane and Brucite Chemical Formula

While comparing Glaucophane and Brucite 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 Brucite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Glaucophane and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Brucite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 2.39 whereas that of Brucite is 2.39.