This has been on my list to do also Eric2017. I have read the information on aussie lapidary forum also, but I'm sure there must be other places in the area it can be found. Anyway, you can get some ideas form the above link that LW posted. I thought the rest area on the left side of the highway traveling south may be worth a look. There is a walk along the lake there, who knows you may get lucky. Just check the map as some parts of the lake are National Park. Also on the right of the highway is a crown land fossicking site. Might be worth while trying to find it, but it looked a bit hard to access when I last looked. Looked like it was surrounded by private property with the only access across the creek. Good luck, K