Eosphorite and Iolite Physical Properties

Eosphorite

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

3.05-3.082.6-2.7

1 7.18

1.5 Fracture

Subconchoidal, Uneven, Conchoidal, Uneven

Not Available

1.6 Cleavage

Poor on {100}

3,1

1.7 Mohs Hardness

57-7.5

2 10

1.8 Chemical Composition

Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Mg₂Al₄Si₅O₁₈

Eosphorite and Iolite Chemical Formula

While comparing Eosphorite 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 Eosphorite and Iolite chemical formula.

Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Eosphorite and Iolite Specific Gravity

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