Stibiotantalite and Faustite Physical Properties

Stibiotantalite

Faustite

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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

Not Available2.9

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

{???} Perfect

{???} Indistinct

1.7 Mohs Hardness

5.5-64.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Stibiotantalite and Faustite Chemical Formula

While comparing Stibiotantalite and Faustite 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 Faustite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Stibiotantalite and Faustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.9 whereas that of Faustite is 2.9.