Cinnabar Crystallography

Composition

HgS

Classification

Sulfide

Structural Parameters

a=4.15, b=4.15, c=9.51 Å
alpha=90, beta=90, gamma=120°
Space Group: P3_221

atom

x/a

y/b

z/c

Hg 0.3333 0.3333 0.0000
S 0.3333 0.3333 0.5000

Reference

Ramsdell, L.S. 1925. The crystal structures of some metallic sulfides. American Mineralogist 10:281-304



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Original release: 1 Oct 1998;