Rhodolite and Gibbsite Physical Properties

Rhodolite

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

3.842.35

1 7.18

1.5 Fracture

Conchoidal

Fibrous, Difficult, Fibrous

1.6 Cleavage

none, may show indistinct parting

{001} Perfect

1.7 Mohs Hardness

7-7.52.5-3

2 10

1.8 Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

Al(OH)3

Rhodolite and Gibbsite Chemical Formula

While comparing Rhodolite 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 Rhodolite and Gibbsite chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
Chemical formula of Gibbsite- Al(OH)3

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Rhodolite and Gibbsite Specific Gravity

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