I was reading through the basic rules and noticed that the only time spell components were explicitly stated as being consumed was when they had a gp value attached to them. For example:
Components: V, S, M (gold dust worth at least 25 gp, which the spell consumes)
Components: V, S, M (a bit of bat fur)
Does this mean that cheap spell components are not consumed when a spell is cast?
The components are only consumed when specified.
Player's Handbook p. 203 (or here in the basic rules):