Another update. Be patience, but the world start to be full of mines.

In the final render the Carbon (C) will no longer be the symbol for coals but for graphite. Coal is energy-relate and will be part of another add-on. New conventions are reserved for commodity's occurrences and for "uncommon" elements attained as byproduct of more large productions: colored dot-asterisk "*" (Au/Ag, PGE, REE, fissionable) and "< >" respectively. See below, for a close screendump.

In the image above Tellurium (Te) is marked <Te> being a byproduct of an Au-Ag production. Now, since about Au-Ag there are ALOT

in the West so one understand why there was the famous "Gold Rush" event, I've decided - with a bit of arbitrariety - to mark the Tellurium, a not METAL useful in certain situations. Surely when you go at supermarket you shouldn't find the Tellurium over the scaffold, but your wife could find some pigments drews up from rocks contains Thorium, for example; and whether after some years of use she decides to make a lifting at the bows or at the lips because something doesn't like to her, is because such elements have acted on mind instead on body.
Returning to be more serious, asterisks are a bit coarse at far distance, but looks fine at closest views; simple dots "." looks inversely, because at closest distance and with the sunlight it vanished. Green asterisks, which could stay for the rest of all commodity will be avoided, since they wouldn't specify which commodity is and would fullfill the view.
Finally, new entries are Qz, Ax, Tq (white) for quartz, amethyst, turquoise.
Never at rest.
Massimo