for the urbban rock hound
sand
cement
concrete
asphalt
sidewalk
river rock
flagstone
chimney brick
construction brick
fly ash brick
cinder block
cement block
slate
chalk
gravel
pebble
hide-a-key rock
gemstone
sharp stones
wet stones
faux boulders
natural rock fountains
car window glass
bottle glass
most of these pages just link back to eachother
turns out you can’t talk about one rock without mentioning another.