This reminds me of Henry Moore's sculptures.
"At his home in Much Hadham, Moore built up a collection of natural objects; skulls, driftwood, pebbles and shells, which he would use to provide inspiration for organic forms."
Wikipedia
We tend to think of "organic" as anything living and "inorganic" as anything that isn't or never was alive. "The original definition of "organic" chemistry came from the misperception that ... compounds [consisting primarily of carbon and hydrogen] were always related to life processes, but it has been shown that this is not the case... Moreover, it is known that life also depends heavily on inorganic chemistry..."
Wikipedia
Using the terminology incorrectly, this is an organic-looking form formed from inorganic material.
