A Redetermination of the Unit-Cell Geometry of Scolecite

G. W. Smith and R. Walls
The British Petroleum Co. Ltd. Research Centre, Chertsey Road, Sunbury-on-Thames, Middlesex

Summary: A re-examination of the mineral scolecite has shown that the previously published monoclinic (pseudo-orthorhombic) unit cell is face-centred and that the Hermann-Mauguin spacegroup symbol has been incorrectly assigned. The reduced monoclinic cell yields a 9·85 Å, b 18·98 Å, c 6·52 Å, β 110° 61; space group Aa. New indexed powder data are included.

Mineralogical Magazine; March 1971 v. 38; no. 293; p. 72-75; DOI: 10.1180/minmag.1971.038.293.09
© 1971, The Mineralogical Society
Mineralogical Society (www.minersoc.org)