Gibbsite and Franklinite Physical Properties

Gibbsite

Franklinite

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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

2.355.05-5.22

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

{001} Perfect

None

1.7 Mohs Hardness

2.5-35.5-6

2 10

1.8 Chemical Composition

Al(OH)3

(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Gibbsite and Franklinite Chemical Formula

While comparing Gibbsite and Franklinite 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 Franklinite chemical formula.

Chemical formula of Gibbsite- Al(OH)3
Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Compare Grey Gemstones

Gibbsite Vs Pallasite

Gibbsite Vs Galena

Gibbsite Vs Vanadinite

Gibbsite and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.