There are three major choices of toppings that can be easily sourced in Melbourne.
1/ Granitic Sand - Light brown in colour (Photo 1 , 2, 5 & 6)
2/ Tuscan Toppings - Terracotta in colour (Photo 3 & 4)
3/ Lillydale Toppings - Grey in colour. (Photo 7)
An edge is installed either side of the area or pathway and then toppings are added to a minimum thickness of 100mm, the surface leveled off & a bit of water sprinkled on top (not too much), then run a compacter over the top numerous times and you have a firm path or parking area.