karst, kind of porous limestone (geology)
(bird species of China) Eurasian crag martin (Ptyonoprogne rupestris)
rock painting; picture or writing carved on rocks
(bird species of China) hill pigeon (Columba rupestris)
(bird species of China) Pacific reef heron (Egretta sacra)
(bird species of China) rock sandpiper (Calidris ptilocnemis)
lithosphere (in geology, the rigid crust of the earth)
petrology; lithology; study of rocks
(bird species of China) rock ptarmigan (Lagopus muta)
stratified rock; flagstone
rock climbing; to climb a rockface
metamorphic rock (geology)
sedimentary rock (geology)
rhyolite (extrusive igneous rock, chemically equivalent to granite)
plutonic rock; abyssal rock
igneous rock (geology); volcanic rock
siliceous rock (mostly composed of silica)
basic rock; mafic rock (with less silicon and more magnesium, iron etc)
(bird species of China) brown accentor (Prunella fulvescens)
diabase (geology); dolerite
(bird species of China) alpine accentor (Prunella collaris)
(bird species of China) robin accentor (Prunella rubeculoides)
(bird species of China) maroon-backed accentor (Prunella immaculata)
(bird species of China) rufous-breasted accentor (Prunella strophiata)
(bird species of China) limestone leaf warbler (Phylloscopus calciatilis)
mogote (steep-sided pointed hill in karst landform)
(bird species of China) limestone wren-babbler (Napothera crispifrons)
phosphorite; phosphate rock
(bird species of China) dusky crag martin (Ptyonoprogne concolor)
ultrabasic rock (geology, rock containing less than 45 percent silicates)
(bird species of China) Altai accentor (Prunella himalayana)
(bird species of China) black-throated accentor (Prunella atrogularis)
pillow lava (geology); pillow basalt
(bird species of China) Siberian accentor (Prunella montanella)
(bird species of China) rock bunting (Emberiza cia)
basalt; also written basalt; also written 玄熔岩[xuan2 rong2 yan2]