When my friend was learning to play the violin in middle school, rosin always seemed like a very confusing subject to me. What is it? How do you put it on your bow? What does it look like? I didnt know that there were different kinds. The only thing I knew is that it supposedly came from trees. This thread was very helpful! It sounds like the Jade is the best type. And that’s a great tip to know if the bow has enough rosin!