Hercynite and Celestine Physical Properties

Hercynite

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

4.393.90-4.00

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

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

1.6 Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

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

1.7 Mohs Hardness

7.5-83-3.5

2 10

1.8 Chemical Composition

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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

Hercynite and Celestine Chemical Formula

While comparing Hercynite 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 Hercynite and Celestine chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hercynite and Celestine Specific Gravity

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