Celestine and Spinel Physical Properties

Celestine

Spinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.003.64-3.66

1 7.18

1.5 Fracture

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on {001}, good on {210}, poor on {010}

None, but may exhibit slight parting

1.7 Mohs Hardness

3-3.58

2 10

1.8 Chemical Composition

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

MgAl₂O₄

Celestine and Spinel Chemical Formula

While comparing Celestine 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 Celestine and Spinel chemical formula.

Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Spinel- MgAl₂O₄

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Celestine and Spinel Specific Gravity

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