
Phi Rho Zee -- Is it the newest fraternity or sorority at the University of Minnesota? That is what most folks will think, but those in the know will recognize this important mathematical expression for electron microprobe analysis. I initially made this shirt for my own amusement, but so many microprobe users said "Hey, I want one!" that I've made it available here!


$17.99
Fitted T-Shirt$18.99


$17.99
Organic Cotton Tee$22.99
White T-Shirt$17.99


$18.99
Women's T-Shirt$17.99


$19.99


$21.99