Gibbsite and Fibrolite Physical Properties

Gibbsite

Fibrolite

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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

2.353.14-3.25

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

{001} Perfect

Not Available

1.7 Mohs Hardness

2.5-36-7

2 10

1.8 Chemical Composition

Al(OH)3

Al 2SiO 5Arthur Thomas , Gemstones (2009)

Gibbsite and Fibrolite Chemical Formula

While comparing Gibbsite and Fibrolite 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 Gibbsite and Fibrolite chemical formula.

Chemical formula of Gibbsite- Al(OH)3
Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)

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Gibbsite and Fibrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.