Uvite and Iolite Physical Properties

Uvite

Iolite

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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

2.97-3.142.6-2.7

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Not Available

1.6 Cleavage

{1011} Indistinct

3,1

1.7 Mohs Hardness

Not Available7-7.5

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)

Mg₂Al₄Si₅O₁₈

Uvite and Iolite Chemical Formula

While comparing Uvite and Iolite 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 Iolite 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 Iolite- Mg₂Al₄Si₅O₁₈

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Uvite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Uvite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Uvite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Uvite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.