Iddingsite and Star Sapphire Physical Properties

Iddingsite

Star Sapphire

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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

2.5-2.83.90-4.05

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

{???} Perfect

Not Available

1.7 Mohs Hardness

3Not Available

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

Al 2O 3Ulrich Henn and Claudio C.

Iddingsite and Star Sapphire Chemical Formula

While comparing Iddingsite and Star Sapphire 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 Iddingsite and Star Sapphire chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Iddingsite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.