Cryolite and Creedite Physical Properties

Cryolite

Creedite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.972.70

1 7.18

1.5 Fracture

Uneven

Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

None observed

Perfect on {100}

1.7 Mohs Hardness

2.54.5

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Cryolite and Creedite Chemical Formula

While comparing Cryolite and Creedite 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 Creedite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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Cryolite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 2.70 whereas that of Creedite is 2.70.