Peridot and Childrenite Physical Properties

Peridot

Childrenite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.553.06-3.25

1 7.18

1.5 Fracture

Conchoidal

Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven

1.6 Cleavage

Poor

Poor/indistinct on {100}

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

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

Peridot and Childrenite Chemical Formula

While comparing Peridot and Childrenite 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 Peridot and Childrenite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

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Peridot and Childrenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.