[I am sorry you are sick. I hope I am not making it worse. It translated very well.
The mining was for four different ores. I was never told their names, but I would know them on sight. One was shiny-gray, and didn't make dust. One was a dull dark gray, and it was volatile. If you hit it the wrong way, it would spark and explode, but it was only found in small lumps and never in a vein. There was a red-gold one that we couldn't get wet or it would give off fumes. And there was a yellow-gold one that was very shiny and it was very hard.
It was the same with the chemicals, they never told us their names. There were five different mixes, because the dark gray ore needed two processes. They were used in the refining of the ores. Their fumes were bad enough on their own but when they mixed with the rocks, it was poisonous to most lifeforms. Once the ores were processed, they were sent to the manufacturing sector to make components. I am sorry that I don't know more details than that. Sookie and Tom might know more. Does that help?]