
Right-click to copy chiselable block.

Left-click to replace another block with a copied one. Sneak-left-click to place a coped block on a surface.

Chisel a block with a 2x2x10 body of obsidian and 2x2x3 caps of quarts above a crafting table to convert it into a wand item:

A preview of the block to be placed/swapped with render in the world.