Currently the various copper blocks appear to be named inconsistently:
|Regular||Waxed Regular||Cut||Waxed Cut|
|Copper Block||Waxed Copper||Cut Copper||Waxed Cut Copper|
|Lightly Weathered Copper Block||Waxed Lightly Weathered Copper||Lightly Weathered Cut Copper||Waxed Lightly Weathered Cut Copper|
|Semi-Weathered Copper Block||Waxed Semi-Weathered Copper||Semi-Weathered Cut Copper||Waxed Semi-Weathered Cut Copper|
|Weathered Copper BlocK||-||Weathered Cut Copper||-|
It appears as if the regular copper blocks either have an extra "block", or the waxed regular copper blocks are missing the "block" suffix.