It takes skills to carve a XYLOPHONE from the raw material of wood.
usually seen on the "ingredients" label on food packaging. But also used about source material for a report: field notes, raw data. The implication is that, unlike 素材, the source material is not totally raw, it's partially assembled --for instance, if you get silk, that's 素材, but when the silk is woven into a fabric, that is 材料, and then the fabric is an ingredient of a handbag.
raw material - both literally and figuratively (as in, the raw data that you base your essay or report or novel on) ("I'm working on materal for my novel!")
Loot is usually MONEY,
but raw material is lumber from TREES.
The hicks GLUE banjos to their knees .