Meanings

dolerite

diabase

trachyte

Selaginella tamariscina (species of spikemoss)

iwateite

anorthosite

porphyrite

Epigaea asiatica

Iwate (prefecture)

Iwashiro (former province located in the west of present-day Fukushima Prefecture)

block lava

rock fragment

salt mine

aa lava flow

volcanic block

conglomerate

rock painting

pair of rocks resembling a married couple (one larger representing the husband, one smaller the wife)

petrography

agglomerate (rock)