[meteorite-list] How to tell which iron is which?? II

[Allan Treiman]

Hi, List -     Thanks very much for your suggestions, on and off list, about the  liquidation meteorites that might be CD. I saw the two masses today,  and they definitely are irons, and look a whole lot like Canyon Diablo.  One has a 2" long tubular hole through it! Both have spots of what looks  like caliche. They were wire-brushed and maybe oiled too, so their  surfaces are not quite natural.        I'm going to do some quick chemical analyses of the rust and  the caliche, and compare them with same from a small sample of (real) CD here.      But I don't have any Odessa or Toluca for comparison. Could any  of you spare a bit of rust and sand or caliche off your Odessa or  Toluca?    Thanks very much.      Allan Allan Treiman Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058 USA 281-486-2117 [EMAIL PROTECTED] On Oct 16, 2006, at 12:25 PM, Allan Treiman wrote: Hi, meteorite list -    I've got a question for you. I've been approached for help in liquidation of an estate (in Texas), which has two iron masses labelled as meteorites. But no information on where they came from. Photos attached below.    They look a lot like irons, and I'm comfortable with a Ni test to tell them from terrestrial iron.    But -- any suggestions on how to tell which iron meteorite they might be? To my untrained eye, they look a lot like Canyon Diablo. Anyone had this type of question come up before?    Thanks for your help.    Allan <rpiper.jpg> <rpiper2.jpg> <rpiper3.jpg> Allan Treiman Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058 USA 281-486-2117 [EMAIL PROTECTED]

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