suiseki
A Japanese artform in which attractively shaped rocks and stones are mounted and displayed.
countable, uncountable
Metamorphic rocks such as crystalline schists, gneisses, quartzite, slate, etc. are most popularly used as garden stones and suisekis, but some other kinds of stone, igneous and sedimentary in origin, are also collected,
Where it comes from
From Japanese 水石 (suiseki, literally “water stone”).
Adapted from the Wiktionary entry suiseki (CC BY-SA 4.0).