Iolite and Alabaster Physical Properties

Iolite

Alabaster

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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

2.6-2.72.30

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

3,1

Not Available

1.7 Mohs Hardness

7-7.52

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

Iolite and Alabaster Chemical Formula

While comparing Iolite and Alabaster 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 Alabaster chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)

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Iolite and Alabaster Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Alabaster Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Alabaster Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.30 whereas that of Alabaster is 2.30.