Stibiotantalite and Pargasite Physical Properties

Stibiotantalite

Pargasite

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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 Available3.04-3.26

1 7.18

1.5 Fracture

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

Splintery, Brittle, Uneven

1.6 Cleavage

{???} Perfect

{110} perfect

1.7 Mohs Hardness

5.5-65-6

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Stibiotantalite and Pargasite Chemical Formula

While comparing Stibiotantalite and Pargasite 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 Pargasite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Stibiotantalite and Pargasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.