Almandine and Celestine Physical Properties

Almandine

Celestine

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.30

3.90-4.00

1.5 Fracture

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

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

1.6 Cleavage

none

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

1.7 Mohs Hardness

7-7.5

3-3.5

1.8 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Almandine and Celestine Chemical Formula

While comparing Almandine and Celestine 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 Almandine and Celestine chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Almandine and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Celestine Optical Properties during the identification of gemstone. Specific gravity of Almandine is 3.90-4.00 whereas that of Celestine is 3.90-4.00.