Non-waxed oxidized copper blocks drop as an item when mined using a wooden pickaxe or golden pickaxe, even though all other types of copper blocks require at least stone tier to be mined. This is because these blocks are not included in the #needs_stone_tool block tag. Blocks that are less than fully oxidized or that are waxed are not affected.
Affected Blocks

• Oxidized Copper
• Oxidized Cut Copper
• Oxidized Cut Copper Slab
• Oxidized Cut Copper Stairs