Alunite and Stibiotantalite Physical Properties

Alunite

Stibiotantalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.9Not Available

1 7.18

1.5 Fracture

Conchoidal, Uneven

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

1.6 Cleavage

On {0001}, perfect

{???} Perfect

1.7 Mohs Hardness

3.5-45.5-6

2 10

1.8 Chemical Composition

KAl3(SO4)2(OH)6

SbTaO 4Ulrich Henn and Claudio C.

Alunite and Stibiotantalite Chemical Formula

While comparing Alunite and Stibiotantalite 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 Alunite and Stibiotantalite chemical formula.

Chemical formula of Alunite- KAl3(SO4)2(OH)6
Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.

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Alunite and Stibiotantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alunite and Stibiotantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Stibiotantalite Optical Properties during the identification of gemstone. Specific gravity of Alunite is Not Available whereas that of Stibiotantalite is Not Available.