Cinnabar and Tourmaline Physical Properties

Cinnabar

Tourmaline

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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

22.85-3.35

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Prismatic {10 1 0}, perfect

Indistinct

1.7 Mohs Hardness

2-2.57-7.5

2 10

1.8 Chemical Composition

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

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

Cinnabar and Tourmaline Chemical Formula

While comparing Cinnabar and Tourmaline 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 Tourmaline chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

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Cinnabar and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.