# Day42 · A resource is not the finished thing

## Complete source

Fictional repair-display notes. Four cards read: bauxite ore; alumina from refining; aluminium metal from smelting; thin aluminium foil from rolling. The cards describe an industrial route from F1; they are not a recipe for children. Another display card says minerals contribute to rocks, following the historical national U02 E3 reference. A labelled composite-rock drawing shows pale and dark components, but does not name them. A red wrapper is nearby and has no material label. The visitor wants to know why the first card and final foil card have different names.

## Question

How can one resource be part of a longer making trail?