Brucite Crystallography

Composition

Mg(OH)2

Classification

Trioctahedral Hydroxide

Structural parameters

a=3.073, b=3.073, c=4.496 Å
alpha=90, beta=90, gamma=120°
Space Group: P-3m

atom

x/a

y/b

z/c
H 0.389 0.778 0.435
O 0.3333 0.6667 0.232
Mg 0.000 0.000 0.000

Reference

Parise, J.B., K. Leinenweber, D.J. Weidner, K. Tan, and R.B. Von Dreele. 1994. Pressure-induced H bonding: neutron diffraction study of brucite, Mg (OD)2, to 9.3 GPa. American Mineralogist. 79:193-196.


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Original release: 1 Oct 1998;