Gibbsite and Peridot Physical Properties

Gibbsite

Peridot

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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

2.351.54-1.55

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

Conchoidal

1.6 Cleavage

{001} Perfect

Poor

1.7 Mohs Hardness

2.5-36.5-7

2 10

1.8 Chemical Composition

Al(OH)3

(Mg,Fe)₂SiO₄

Gibbsite and Peridot Chemical Formula

While comparing Gibbsite and Peridot 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 Peridot chemical formula.

Chemical formula of Gibbsite- Al(OH)3
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Gibbsite and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Peridot Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 1.54-1.55 whereas that of Peridot is 1.54-1.55.