Smithsonite and Cinnabar Physical Properties

Smithsonite

Cinnabar

Add ⊕

Physical Properties

Tenacity

Brittle

Slightly sectile

Solubility

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

Durability

Specific Gravity

4.00-4.652

1 7.18

👆🏻

Fracture

Uneven, Sub-Conchoidal

Uneven

Cleavage

Perfect on [1011]

Prismatic {10 1 0}, perfect

Mohs Hardness

5-5.52-2.5

2 10

👆🏻

Chemical Composition

ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Smithsonite and Cinnabar Chemical Formula

While comparing Smithsonite 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 Smithsonite and Cinnabar chemical formula.

Chemical formula of Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Smithsonite Vs Tavorite

Smithsonite Vs Tektite

Smithsonite Vs Titanite Sphene

Smithsonite and Cinnabar Specific Gravity

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