quarry stone; unprocessed stone
Refers to stone in its natural, unworked state, as taken from a quarry. Often contrasted with finished or dressed stone. The cross-reference 荒石 (あらいし) is a near synonym.
See also: 荒石
The garden's stone wall is made of unprocessed stone.
We stacked quarry stones to make a simple furnace.
Compound of 野面 (のづら, 'field surface; natural ground') and 石 (いし, 'stone'). The exact derivation is uncertain, but the term likely refers to stone as found on the ground surface, unshaped by human hands.