石化した
ancient
bark
cambrian
crystal
detail
dinosaur
forest
fossil
gemstone
geological
geology
grain
hardwood
log
mineral
natural
nature
ornamental
paleontology
petrifaction
polished
prehistoric
prehistory
research
rough
science
section
sedimentary
shiny
slice
smoothed
stone
texture
textured
timber
time
tree
triassic
trunk
weathered
white
wood
woodstone