Stibiotantalite and Polyhalite Physical Properties

Stibiotantalite

Polyhalite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.78

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

{???} Perfect

Perfect on {10 1 }; parting on {010}

1.7 Mohs Hardness

5.5-63.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

Not Available

Stibiotantalite and Polyhalite Chemical Formula

While comparing Stibiotantalite and Polyhalite 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 Polyhalite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.

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Stibiotantalite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.78 whereas that of Polyhalite is 2.78.