Glaucophane and Gibbsite Physical Properties

Glaucophane

Gibbsite

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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

3-3.152.35

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Fibrous, Difficult, Fibrous

1.6 Cleavage

Good on [110] and on [001]

{001} Perfect

1.7 Mohs Hardness

6.0-6.52.5-3

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

Al(OH)3

Glaucophane and Gibbsite Chemical Formula

While comparing Glaucophane and Gibbsite 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 Gibbsite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Gibbsite- Al(OH)3

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Glaucophane and Gibbsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Gibbsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Gibbsite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 2.35 whereas that of Gibbsite is 2.35.