I've uploaded the first version of Phoebus' Steel Mod.
To install, unpack directly in your DF root dir then generate a new world.
Enjoy.
The mod adds anthracite coal to metamorphic layers, and adds two graphite based steel making reactions.
Wow - optional .... coal, oops cool... and i just noticed today your reply on my geological/study/i cannot define any pure colour reply a few deka of pages ago...... (regen is at the moment out of question, but with V.26 it is a "I go with it"!) - and sorry if it is a late reply, but as said (the colours I am used to the stones here in my area)..... so, sorry - no generals I may share..... what would be nice in this regard would be if toady would not just use one colour set per layer, but alike to (ground/grass/plants) tiles alternate sets wich are applied per connected layer during world gen - so that you may have your gray/green/red granite (depending on geographic location), etc. And for igneous or extrusive I understand why the basic colours are so much just grey/black.... there may be many differences - but they are so outside the Back/Foreground 8 colours base and debatable... if our godfather of source may incorporate colour in ore/gem carrieing layers based on the ores/gem present - well.... wouha!...)
P.S.: Sorry, just arrived from a party and went through (lets call it distraction/good night lecture) the last dozen of pages again.... In the hope that there where neither a DF, nor a Phoebus upgrade
(and at least the last one was not fulfilled/granted)...
P.P.S.: Thanks again!
P.P.P.S.: I may look into that steel mod once i am sober again.... but wouldn't it be nice to incorporate all those correctly stated DFWiki stones that are/or was used in Real Life as a source for something.... Bauxite as 1st thought....
Oops... nope - sorry, please don't try to make a suite (Virus/Malware/Firewall - one App for a particular task please!) outa'ur great tileset (as long as it is optional you have my full support and me as a partial user of some of the offerings you are granting us!) [Edit: So, if you go on - and I understand that desire too well - into full modding mode - please keep the tileset as a base and solemnly downloadable addon to basic DF]