Tourmaline and Stibiotantalite Physical Properties

Tourmaline

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

2.85-3.35

Not Available

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Indistinct

{???} Perfect

1.7 Mohs Hardness

7-7.5

5.5-6

1.8 Chemical Composition

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

SbTaO 4Ulrich Henn and Claudio C.

Tourmaline and Stibiotantalite Chemical Formula

While comparing Tourmaline 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 Tourmaline and Stibiotantalite chemical formula.

Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.

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Tourmaline and Stibiotantalite Specific Gravity

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