Apophyllite and Stibiotantalite Physical Properties

Apophyllite

Stibiotantalite

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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

2.30-2.50

Not Available

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Perfect on (001)

{???} Perfect

1.7 Mohs Hardness

4.5-5

5.5-6

1.8 Chemical Composition

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

SbTaO 4Ulrich Henn and Claudio C.

Apophyllite and Stibiotantalite Chemical Formula

While comparing Apophyllite 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 Apophyllite and Stibiotantalite chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.

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Apophyllite and Stibiotantalite Specific Gravity

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