Stibiotantalite and Apophyllite KF Physical Properties

Stibiotantalite

Apophyllite KF

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.33-2.37

1 7.18

1.5 Fracture

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

Uneven, Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

{???} Perfect

Perfect on {001}, imperfect on {110}

1.7 Mohs Hardness

5.5-64.5-5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Stibiotantalite and Apophyllite KF Chemical Formula

While comparing Stibiotantalite and Apophyllite KF 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 Apophyllite KF chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

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Stibiotantalite and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.