Hercynite and Chiastolite Physical Properties

Hercynite

Chiastolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.393.00-3.15

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

7.5-85-5.5

2 10

1.8 Chemical Composition

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

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

Hercynite and Chiastolite Chemical Formula

While comparing Hercynite and Chiastolite 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 Chiastolite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Chiastolite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

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Hercynite and Chiastolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Chiastolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Chiastolite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.00-3.15 whereas that of Chiastolite is 3.00-3.15.