Pollucite and Stibiotantalite Physical Properties

Pollucite

Stibiotantalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Readily soluble in HF

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.86-2.94Not Available

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

None observed

{???} Perfect

1.7 Mohs Hardness

6.5-75.5-6

2 10

1.8 Chemical Composition

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

SbTaO 4Ulrich Henn and Claudio C.

Pollucite and Stibiotantalite Chemical Formula

While comparing Pollucite 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 Pollucite and Stibiotantalite chemical formula.

Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.

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Pollucite and Stibiotantalite Specific Gravity

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