hard-hearted
heartless
adamant
bone
brand
brick
butane lighter
cement
cigarette lighter
concrete
diamond
firebrand
flambeau
flint and steel
granite
heart of oak
igniter
iron
light
lighter
marble
nails
oak
portfire
rock
sparker
spill
steel
stone
taper
torch
city
metropolis
river
urban center
flinted
flints
agate
basalt
bronze
chalk
clay
coal
ivory
jade
lava
limestone
mineral
obsidian
onyx
pebble
plaster
quartz
shale
silica
slate
Clint
Schwindt
clint
dint
glint
hint
imprint
lint
mint
misprint
print
quint
reprint
splint
sprint
squint
stint
tint
vint