Cinnabar and Tantalite Physical Properties

Cinnabar

Tantalite

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1 Physical Properties

1.1 Tenacity

Slightly sectile

Not Available

1.2 Solubility

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

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

25.2

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Prismatic {10 1 0}, perfect

Good in one direction

1.7 Mohs Hardness

2-2.56-6.5

2 10

1.8 Chemical Composition

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

(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Cinnabar and Tantalite Chemical Formula

While comparing Cinnabar and Tantalite 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 Cinnabar and Tantalite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

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Cinnabar and Tantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 5.2 whereas that of Tantalite is 5.2.