Stibiotantalite and Ettringite Physical Properties

Stibiotantalite

Ettringite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available1.77

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{???} Perfect

Perfect on {10 1 0}

1.7 Mohs Hardness

5.5-62-2.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Stibiotantalite and Ettringite Chemical Formula

While comparing Stibiotantalite and Ettringite 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 Ettringite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Stibiotantalite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 1.77 whereas that of Ettringite is 1.77.