Stibiotantalite and Cinnabar Physical Properties

Stibiotantalite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Not Available

Slightly sectile

1.2 Solubility

Not Available

1.04 x 10⁻²⁵ g per 100 ml water (Ksp at 25°C = 2 x 10⁻³²)

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

{???} Perfect

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

5.5-62-2.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Stibiotantalite and Cinnabar Chemical Formula

While comparing Stibiotantalite and Cinnabar 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 Cinnabar chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Stibiotantalite and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2 whereas that of Cinnabar is 2.