Stibiotantalite and Hercynite Physical Properties

Stibiotantalite

Hercynite

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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

Not Available4.39

1 7.18

2.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

ConchoidalGemdat.org, Uneven

2.6 Cleavage

{???} Perfect

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

2.7 Mohs Hardness

5.5-67.5-8

2 10

2.11 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

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

Stibiotantalite and Hercynite Chemical Formula

While comparing Stibiotantalite and Hercynite 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 Stibiotantalite and Hercynite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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Stibiotantalite and Hercynite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 4.39 whereas that of Hercynite is 4.39.