Stibiotantalite and Grandidierite Physical Properties

Stibiotantalite

Grandidierite

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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 Available2.85-3.00

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{???} Perfect

Perfect

1.7 Mohs Hardness

5.5-67.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Stibiotantalite and Grandidierite Chemical Formula

While comparing Stibiotantalite and Grandidierite 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 Grandidierite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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Stibiotantalite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.