Apophyllite KF and Cinnabar Physical Properties

Apophyllite KF

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

2.33-2.372

1 7.18

1.5 Fracture

Uneven, Brittle, Uneven, Brittle, Uneven

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on {001}, imperfect on {110}

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

4.5-52-2.5

2 10

1.8 Chemical Composition

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

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

Apophyllite KF and Cinnabar Chemical Formula

While comparing Apophyllite KF 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 Apophyllite KF and Cinnabar chemical formula.

Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Green Gemstones

Apophyllite KF Vs Hauyne

Apophyllite KF Vs Langbeinite

Apophyllite KF Vs Nepouite

Apophyllite KF and Cinnabar Specific Gravity

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