Gibbsite and Cymophane Physical Properties

Gibbsite

Cymophane

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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

2.353.69-3.81

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

Not Available

1.6 Cleavage

{001} Perfect

Not Available

1.7 Mohs Hardness

2.5-38.5

2 10

1.8 Chemical Composition

Al(OH)3

BeAl 2O 4Arthur Thomas , Gemstones (2009)

Gibbsite and Cymophane Chemical Formula

While comparing Gibbsite and Cymophane 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 Cymophane chemical formula.

Chemical formula of Gibbsite- Al(OH)3
Chemical formula of Cymophane- BeAl 2O 4Arthur Thomas , Gemstones (2009)

Compare Grey Gemstones

Gibbsite Vs Galena

Gibbsite Vs Pallasite

Gibbsite Vs Vanadinite

Gibbsite and Cymophane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Cymophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Cymophane Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 3.69-3.81 whereas that of Cymophane is 3.69-3.81.