Dravite and Childrenite Physical Properties

Dravite

Childrenite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.03-3.18

Uneven, Irregular, Conchoidal

{???} Indistinct

7-7.5

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Soluble

3.06-3.25

Sub-Conchoidal, Conchoidal, Uneven

Poor/indistinct on {100}

4.5-5

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

Dravite and Childrenite Chemical Formula

While comparing Dravite 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 Dravite and Childrenite chemical formula.

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Dravite and Childrenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite Vs Childrenite during the identification of gemstone. Specific gravity of Dravite is whereas that of Childrenite is .