Thanks to all who helped me out so promptly with my thenardite parameters. Some may wonder why I got two oxygen coordinates wrong when I am able to quote the original reference. Well, I fell victim again to a misprint in the "Structure Reports" (i.e. Vol 43A, p.269 in this case) which caused me headaches and hours wasted. Has this reference which I always thought highly of become an unreliable compendium? Is it used at all these days (the newer volumes on the shelf don't show much wear)? L. Keller
