So everything is written in the title. When I open the console to use the "fill" command, I can find all the blocks I'm looking for but I'm not able to find "quartz slabs" even after having tried the official ID of the object and other possibilities like "slab_quartz", "slab_of_quartz", "quartz_slabs", "upper_slab_of_quartz", "upper_quartz_slab",...

Thank you for your time, I hope you will set things right as soon as possible.