From "Ecstasy, The MDMA Story", by Bruce Eisner: MDMA is usually a white crystalline powder. A reddish or brownish tint is sometimes seen, and indicates the presence of manufacture by-products. The smell of the powder also gives a clue to these by-products. The strong smell of solvent indicates that the material still is damp with ether from manufacture, and the smell of sassafras indicates isosafarole that hasn't been converted to MDMA. However, experience has shown that these two impurities have little impact on the potency of the drug. I wouldn't take this as the last word, by no means, on the possibilities of contaminants. In fact, Eisner also recommends sending samples to a testing laboratory. He sites: S.P. Lab, 55426 N.W. 79th Avenue, Miami, Florida 33166. They ask for a sample wrapped in foil or plastic, enclosed in an envolope, with a slip of paper telling the alleged content, cost, any undesirable side-effects noticed, $25.00 per sample, and a five-digit number to identify the sample. After 14 days, call (305) 757-2566 for the result. -fX ------------------------------------------------------------------------- To find out more about the anon service, send mail to help@anon.penet.fi. Due to the double-blind system, any replies to this message will be anonymized, and an anonymous id will be allocated automatically. You have been warned.