Jacobsite and Cinnabar Physical Properties

Jacobsite

Cinnabar

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Physical Properties

Tenacity

Slightly sectile

Solubility

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

Durability

Specific Gravity

4.76-5.032

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

None

Prismatic {10 1 0}, perfect

Mohs Hardness

5.5-6.52-2.5

2 10

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Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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

Jacobsite and Cinnabar Chemical Formula

While comparing Jacobsite 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 Jacobsite and Cinnabar chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

Jacobsite Vs Povondraite

Jacobsite Vs Sonolite

Jacobsite Vs Staurolite

Jacobsite and Cinnabar Specific Gravity

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