For some reason the question "Can I put a hot pot on my granite?" is one of the top 5 questions that we always get asked.
Yes you can!
Granite is formed by extreme heat and pressure combined beneath the earths crust. It can not be affected by heat from a cook top or frying pan. A lit flame placed under the granite will have no melting effect and will not leave any burned or scarred marks.
My flat iron has burned the heck out of my laminate countertop in my bathroom, I'm so glad I have granite in my kitchen!
Photo from MGS by Design. Kitchen countertops are Silver Sea Green granite with a 1 5/8" Mitered Edge Detail.