Uvite and Gibbsite Physical Properties

Uvite

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

2.97-3.142.35

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Fibrous, Difficult, Fibrous

1.6 Cleavage

{1011} Indistinct

{001} Perfect

1.7 Mohs Hardness

Not Available2.5-3

2 10

1.8 Chemical Composition

Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Al(OH)3

Uvite and Gibbsite Chemical Formula

While comparing Uvite 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 Uvite and Gibbsite chemical formula.

Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Gibbsite- Al(OH)3

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Uvite and Gibbsite Specific Gravity

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