石

oil boom

oil exploration

sore loser who stubbornly refuses to admit being wrong

neither medicines nor medical care having little effect on a patient

andradite

will of iron

Idiomatic expression; Su verb - precursor to the modern suru

to refuse stubbornly to admit one is wrong; to rinse one's mouth with a rock and rest one's head in a river

oil shale

trace fossil

pyroxene andesite

peak oil (date when the peak of the world's petroleum production rate is reached)

oil depletion

Chalcolithic period (i.e. the Copper Period)

calcareous sponge (any sponge of class Calcarea)

brown-spotted grouper (Epinephelus chlorostigma)

Iwashimizu Festival (Sept. 15 festival held at Iwashimizu Hachimangu in Kyoto)

stupa-shaped stone distance indicators placed at intervals of one chō (approx. 109 meters) on a temple approach

Tsukushi rhododendron (Rhododendron metternichii var.)

Rhododendron metternichii

Azuma rhododendron (Rhododendron metternichii var.)

Hakusan rhododendron (Rhododendron metternichii var.)

Kibana rhododendron (Rhododendron metternichii var.)

titanite; sphene

derived fossil