Cryolite and Childrenite Physical Properties

Cryolite

Childrenite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.973.06-3.25

1 7.18

1.5 Fracture

Uneven

Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven

1.6 Cleavage

None observed

Poor/indistinct on {100}

1.7 Mohs Hardness

2.54.5-5

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

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

Cryolite and Childrenite Chemical Formula

While comparing Cryolite 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 Cryolite and Childrenite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

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Cryolite and Childrenite Specific Gravity

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