rough
unsmooth
arenaceous
arenarious
breccial
brecciated
craggy
crystal
crystalline
grainy
granular
granulate
granulated
gravelly
gritty
lapideous
lithoid
lithoidal
monolithic
pebbled
porphyritic
rock-ribbed
rock-strewn
rock-studded
rocklike
rocky
sabulous
sandy
shingled
shingly
stonelike
stony
trachytic
pebble
alluvial
clayey
ferruginous
hard-packed
loamy
miry
nearby
oozy
quartzose
reedy
rushy
shelly
sun-struck
untrodden
wave-washed
weedy