Franklinite and Gibbsite Physical Properties

Franklinite

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

5.05-5.222.35

1 7.18

1.5 Fracture

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

Fibrous, Difficult, Fibrous

1.6 Cleavage

None

{001} Perfect

1.7 Mohs Hardness

5.5-62.5-3

2 10

1.8 Chemical Composition

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

Al(OH)3

Franklinite and Gibbsite Chemical Formula

While comparing Franklinite 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 Franklinite and Gibbsite chemical formula.

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

Compare Red Gemstones

Franklinite Vs Hibonite

Franklinite Vs Hydrogrossular

Franklinite Vs Hexagonite

Franklinite and Gibbsite Specific Gravity

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