Cinnabar and Oligoclase Physical Properties

Cinnabar

Oligoclase

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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

22.62-2.67

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

1.6 Cleavage

Prismatic {10 1 0}, perfect

From the Greek, oligos and kasein, little cleavage.

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

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Cinnabar and Oligoclase Chemical Formula

While comparing Cinnabar and Oligoclase 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 Oligoclase chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cinnabar and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.