In order to complete the information concerning the the SMRR-2002 I already sent to you during the first round (see below for participation number): For SMRR 1: leave out souzalite For SMRR 2: no change, chemical composition is conistent with the proposed solution, although I calculated somewhat different cell parameters (see result from first round) For SMRR 3: I won't bet money on this. I'm quite sure that Thalidomide (C13H10N2O, N 19-1946) is in the mixture. Then the chemist should help in order to know the synthesis route. Most often Urea (NH2CONH2, C 72-0118) is used and might be left in the sample. Also Thamocifen citrate (C26H29NO-C6H8O7, Q 38-1715) and Vanillin (C8H8O3, D 36-1546) seem to be possible candidates. But still the result remains incomplete :-( For SMRR 4: leave out parabutlerite