Brucite and Glaucophane Physical Properties

Brucite

Glaucophane

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.393-3.15

1 7.18

1.5 Fracture

Irregular

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Perfect on {0001}

Good on [110] and on [001]

1.7 Mohs Hardness

2.56.0-6.5

2 10

1.8 Chemical Composition

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

[ ]Na2(Mg3Al2)Si8O22(OH)2

Brucite and Glaucophane Chemical Formula

While comparing Brucite 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 Brucite and Glaucophane chemical formula.

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

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Brucite and Glaucophane Specific Gravity

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