This is a fresh split. Excuse my camera. I have burned a lot of mulberry in the past but I feel this may be something else. It is not yellow which turns brown on fresh splits however it is reddish brown in the heart. The bark seems mulberry ish, but the furrows are deep. The tree was about 2ft in diameter. A fresh split has a earthy and almost sweet smell. Is it maybe an elm? Splitting is OK.