If you don't own the current copy of Fleischer's Glossary of Mineral Species you can also get formula information from here:

  http://rruff.info/ima/

Or you can get classifications from the AFMS classification list from here:

http://www.amfed.org/rules/AFMS_Mineral_List_2003.pdf

You will need a form to fill in the sample number, specie name, and location for each specimen.

http://www.amfed.org/rules/AFMS_Mineral_Competition_List.pdf