Would sand be considered a type of geological sample?

You bet

Yep.

30 years later I still remember my Soil Mechanics Final. Each of us was given a number that corresponded with sample on the front desk. We were supposed to examine it analyze it and then write as much as we could regarding the behaviours, properties and possible uses of our sample. I got sand.

And a “C”.

@rojo – Was your answer re: uses of sand, “Make castles and concrete, and murder by drowning ?”

@Seek_Kolinahr No. I wish I had, probably would have gotten me a C+