Childrenite and Star Sapphire Physical Properties

Childrenite

Star Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.06-3.253.90-4.05

1 7.18

1.5 Fracture

Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven

Not Available

1.6 Cleavage

Poor/indistinct on {100}

Not Available

1.7 Mohs Hardness

4.5-5Not Available

2 10

1.8 Chemical Composition

(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

Al 2O 3Ulrich Henn and Claudio C.

Childrenite and Star Sapphire Chemical Formula

While comparing Childrenite 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 Childrenite and Star Sapphire chemical formula.

Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Childrenite and Star Sapphire Specific Gravity

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