aa
abyssal rock
basalt
base
basement
basic
basis
bearing wall
bed
bedding
belly
block lava
bottom
bottom side
bottommost
brash
breccia
breech
buttocks
central
conglomerate
crag
deepest
downside
druid stone
essential
festooned pahoehoe
floor
flooring
focal
fond
footing
foundation
fundament
fundamental
gneiss
granite
ground
grounds
groundwork
hardpan
igneous rock
indispensable
infrastructure
lava
life-and-death
life-or-death
limestone
living rock
lower side
rock
stone
10-1/2
CCC
Pyrex
backfill
bell glass
breaking-point
brickwork
casemate
coralite
effing
empyreal
escarpment
everlasting
fact
fancy-free
fight-or-flight
gangue
looking-for
mothering
outcrop
pan
petrography
physico-theological
shale
spiders'
stela
thanklessness
transparisteel
unescapable
unmoral
unshakeable
upsurge
world-old