1. Michigan State University, 3078, Earth and Environmental Sciences, 288 Farm Lane, room 207 Natural Sciences Building, East Lansing, Michigan, United States, 48824-1312, ,
2. Smithsonian Institution, 8264, Department of Mineral Sciences, National Museum of Natural History, Washington, United States, 20013-7012;
3. University of Edinburgh, Centre for Astrobiology, School of Physics & Astronomy, King's Buildings, Edinburgh, Edinburgh, United Kingdom of Great Britain and Northern Ireland, EH9 3JZ;
4. NASA Goddard Space Flight Center, Solar System Exploration Division, Greenbelt, Maryland, United States;
5. Universite de Lorraine, 137665, CNRS, CRPG, Nancy, Lorraine, France;
6. NASA Johnson Space Center, 43834, Astromaterials Research and Exploration Science Division, Houston, Texas, United States;
7. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, United States;
8. University of Cambridge, 2152, Department of Earth Sciences, Earth Sciences Building, Downing Street, Cambridge, United Kingdom of Great Britain and Northern Ireland, CB2 3EQ;
9. Arizona State University, 7864, Tempe, Arizona, United States
10. European Space Agency, AG Noordwijke, Netherlands, ;
11. NASA Headquarters, Mars Sample Return Program, washington, District of Columbia, United States, ;
12. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, United States, ;
13. Canadian Space Agency, 55999, Saint-Hubert, Quebec, Canada;
14. NASA Headquarters, Mars Sample Return Program, Washington, District of Columbia, United States;
15. University of New Mexico, Institute of Meteoritics, Albuquerque, New Mexico, United States;
16. ETH Zürich, 27219, Institute of Geochemistry and Petrology, Zurich, Zürich, Switzerland;
17. Università di Bologna, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Bologna, Italy;
18. Université Libre de Bruxelles, 26659, Bruxelles, Bruxelles, Belgium;
19. The Open University, 5488, Milton Keynes, Buckinghamshire, United Kingdom of Great Britain and Northern Ireland;
20. German Aerospace Center (DLR), Institute of Planetary Research, Rutherfordtstr. 2, Berlin, Germany, 12489, , ;
21. European Space Agency, Noordwick, Netherlands;
22. Indiana University Bloomington, 1771, Emeritus Provost Professor, Earth and Atmospheric Sciences, Bloomington, Indiana, United States;
23. Natural History Museum, Department of Earth Sciences, London, London, United Kingdom of Great Britain and Northern Ireland
24. University of Glasgow, 3526, School of Geographical and Earth Sciences, Glasgow, Glasgow, United Kingdom of Great Britain and Northern Ireland;
25. Massachusetts Institute of Technology, 2167, Earth, Atmospheric and Planetary Sciences, 45 Carleton St, E26-633, Cambridge, Massachusetts, United States, 02139-4307, ;
26. University of Arizona, Lunar and Planetary Laboratory, 1629 E University Blvd, Tucson, Arizona, United States, 85721-0092;
27. Royal Ontario Museum, Natural History, 100 Queens Park, Toronto, Ontario, Canada, M5S 2C6, ;
28. University of Nevada Las Vegas, Las Vegas, Nevada, United States;
29. Japan Aerospace Exploration Agency (JAXA), Institute of Space and Astronautical Science (ISAS), Sagamihara, Kanagawa, Japan;
30. CNRS, 27051, Centre de Biophysique Moléculaire, Orleans, France;
31. Centro de Astrobiologia, 120422, (CSIC-INTA), Torrejon de Ardoz, Madrid, Spain
32. University of Aberdeen, 1019, Department of Planetary Sciences, School of Geosciences, King's College, Aberdeen, Aberdeen, United Kingdom of Great Britain and Northern Ireland;