Hardystonite and Cinnabar Physical Properties

Hardystonite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Brittle

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

3.396-3.4432

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

[001] good, [100] and [110] fair

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

3-42-2.5

2 10

1.8 Chemical Composition

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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

Hardystonite and Cinnabar Chemical Formula

While comparing Hardystonite 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 Hardystonite and Cinnabar chemical formula.

Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hardystonite and Cinnabar Specific Gravity

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