Contest

Welcome to my contest! In the contest I will ask you a question, and the first one to answer it corectly will win their name in the Incredible scientists on the left! You can't put the same answer as someone els! If you get it wrong i will say nope! Also if  you get it right  can put any video in my website!  9cnn't be in appropiate!  (If you win 5 contestes you will win scientist of the month, you will win 1 fundip too)

The question is......................................What is the name of an ordinary rock that is already magnetized!