Cool dragon!!! I would suggest if that’s a heat rock though don’t turn it on they can get burned by them. There is a lot of information on why we shouldn’t use them. A ceramic heat light and a regular rock is safer and produces heat for the whole tank. Hope this helps.
I agree with jsnascaro9. But if that isn’t a reptile rock, then no worries! It is important that this little lady has the right lighting in terms of UVB. What sort of lamp do you have for her?