Iolite and Eosphorite Physical Properties

Iolite

Eosphorite

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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

2.6-2.73.05-3.08

1 7.18

1.5 Fracture

Not Available

Subconchoidal, Uneven, Conchoidal, Uneven

1.6 Cleavage

3,1

Poor on {100}

1.7 Mohs Hardness

7-7.55

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

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

Iolite and Eosphorite Chemical Formula

While comparing Iolite and Eosphorite 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 Iolite and Eosphorite chemical formula.

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

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Iolite and Eosphorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Eosphorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Eosphorite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.05-3.08 whereas that of Eosphorite is 3.05-3.08.