Spinel and Cacoxenite Physical Properties

Spinel

Cacoxenite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.662.2-2.6

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Uneven

1.6 Cleavage

None, but may exhibit slight parting

None

1.7 Mohs Hardness

83-4

2 10

1.8 Chemical Composition

MgAl₂O₄

(Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

Spinel and Cacoxenite Chemical Formula

While comparing Spinel and Cacoxenite 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 Spinel and Cacoxenite chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Cacoxenite- (Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

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Spinel and Cacoxenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Cacoxenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Cacoxenite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.2-2.6 whereas that of Cacoxenite is 2.2-2.6.