Pyrite cubes from many different environments at Renison Bell appear thermoelectrically to be all of the same generation and to have formed at a lower temperature than pyrite from Mt. Bischoff. Slight thermoelectric differences, unattributable to tarnish, exist between polished and unpolished samples. Resistivity measurements obtained using a 4-probe method show that 1) low resistivity is related at room temperature to positive thermoelectricity and 2) pyrite at the base of pyrrhotite "sills" may have formed at higher temperatures than pyrite within the sills. Spectrographic analyses indicate a tentative correlation between Cu and/or Mo content and high resistivity.