Cryolite and Spinel Physical Properties

Cryolite

Spinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.973.64-3.66

1 7.18

1.5 Fracture

Uneven

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None observed

None, but may exhibit slight parting

1.7 Mohs Hardness

2.58

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

MgAl₂O₄

Cryolite and Spinel Chemical Formula

While comparing Cryolite and Spinel 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 Spinel chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Spinel- MgAl₂O₄

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Cryolite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.