Powdered iron is magnetic, but powdered sulfur is not what occurs when they form a mixture in a beaker at room temperature?
If you mix iron filings and sulfur flowers you get a mixture..........
........a mixture. And in fact, a magnet can separate the iron from the sulfur. Heat the mixture up, however, and a chemical reaction occurs:
The iron is oxidized, and the sulfur is reduced, and
If I have missed the point of your question, I apologize.