Hercynite and Jeremejevite Physical Properties

Hercynite

Jeremejevite

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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

4.393.28-3.31

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

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

None observed

1.7 Mohs Hardness

7.5-86.5-7.5

2 10

1.8 Chemical Composition

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

Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

Hercynite and Jeremejevite Chemical Formula

While comparing Hercynite and Jeremejevite 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 Jeremejevite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Jeremejevite- Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

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Hercynite and Jeremejevite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hercynite and Jeremejevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Jeremejevite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.28-3.31 whereas that of Jeremejevite is 3.28-3.31.