Inorganic often refers to materials not derived from living organisms, whether found in nature or made by humans. Both diamond and plastic are considered inorganic.
Pro Tip 2/3
Not Always Synthetic
While inorganic can mean man-made, it also includes naturally occurring non-living matter like water and minerals. Stone sculptures are made of inorganic materials.
Pro Tip 3/3
Lacking Life
In contrast to organic, inorganic usually lacks carbon and is not associated with life processes. Inorganic soil lacks the nutrients plants need.