In spiritual and metaphysical traditions brass is the metal that brings out natural good and inner truth.  Even the phrase 'getting down to brass tacks' tells of clearing away old debris and getting down to the pure and natural truth.
Repeated wearing of brass jewelry pieces will cause them to take on your own body chemistry revealing your personal energy signature. 
 
Wear your intention with this simple hand cut and hammered crescent moon neckalce on 14 inch gold plated oval cable chain.