Hi Chasseur,
I am having difficulty understanding why you have trouble in France not being able to follow the usual procedure for all meteorite classification. It is quite simple. You seem to have submitted pieces to some scientists who should then be able to determine very easily what the material is and if it is a meteorite. Somebody who classifies as a profession will do the simple tests using oxygen isotopes which will immediately tell you if it is a meteorite or terrestrial.
Have you asked for that to be done by an institution that officially classifies meteorites.
After that it does not matter what other information you gather to try and support your own theories as their test is absolutely conclusive.
If it shows as being a meteorite then any professional meteoriticist would be very excited and would want to follow up with classification. Only when it is classified and published in the Met Bulletin can you then officially state that it is definitely a meteorite and what sort it is.
It is very dangerous ground to be on if you set up web pages stating that rocks are meteorites when they have not followed this procedure with expert confirmation it is a meteorite....especially if you sell any of it. It has happened before and people have had a lot of trouble with the law because of it.
You seem to have put in a lot of work trying to prove your sample is a Martian meteorite in many ways....but there is no need for that if it is one. Just take it through the proper channels with someone who is a respected expert and who classifies meteorites regularly.
See this list.....these are the real people to talk to and persuade to look at your samples....
http://meteorite-identification.com/verification.htmlBIMS members can help up to a point....but cannot confirm what your sample is without passing on the actual material to the expert classification institutes.
Hope that helps,
and good luck.