Antigorite and Cinnabar Physical Properties

Antigorite

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

2.58-2.802

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

{001} Good

Prismatic {10 1 0}, perfect

Mohs Hardness

5-5.52-2.5

2 10

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Chemical Composition

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

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

Antigorite and Cinnabar Chemical Formula

While comparing Antigorite 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 Antigorite and Cinnabar chemical formula.

Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Antigorite and Cinnabar Specific Gravity

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