arenaceous
arenarious
breccial
brecciated
bridging
craggy
crystal
crystalline
grainy
granular
granulate
granulated
gravelly
gritty
imbricate
incumbent
lapideous
lapping
lithoid
lithoidal
monolithic
overarched
overlapping
overlying
pebbled
pebbly
porphyritic
rock-ribbed
rock-strewn
rock-studded
rocklike
rocky
sabulous
sandy
shingly
spanning
stonelike
stony
superincumbent
trachytic