Iolite and Fluorapatite Physical Properties

Iolite

Fluorapatite

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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

2.6-2.73.1-3.25

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

3,1

Indistinct

1.7 Mohs Hardness

7-7.55

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Iolite and Fluorapatite Chemical Formula

While comparing Iolite and Fluorapatite 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 Fluorapatite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

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Iolite and Fluorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Fluorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Fluorapatite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.1-3.25 whereas that of Fluorapatite is 3.1-3.25.