My second attempt at a fort next to a volcano, finally found a embark site with volcano AND flux, plus all that shallow/deep metal goodness.
Turns out the metals are nothing but gold ore, with copper and lead and occasional silver as a by-product. "Prospect all" in DFHack revealed no iron ores whatsoever, no lignite or coal, and precious little flux stone. Steel will be... interesting. No tin, so no bronze.
But we make the best of it. Four magma smelters are working full time. I got lucky with a mood and now have a Legendary blacksmith, so I've given him his own magma forge and he's making nothing but high-level gold cabinets/racks/armor stands for my nobles later on. I'm at 80-plus dorfs now, with a stockpile full of golden masterwork furniture. For trading I just make rock pots and fill them with lavish meals, selling for upwards of 4,000 each, then I use the funds to buy every last scrap of iron anything to melt it down and eventually make steel. Another few good years and I'll have enough steel to outfit a military of 20 dwarves, I guess copper armor and silver hammers will have to do for now.
The embark screen said "flux", but they didn't mention that it was ONE pathetic level with pockets of marble, and it's 35 z-levels down from the rest of the fort. Luckily didn't breach any caverns on the way down, hugging the side of the volcano pipe. After mining out every last scrap of marble I've got enough to finish production of armor.
The other bright side, besides copious amounts of gold next to a volcano, is that the top of the map contains a couple layers of Fire clay. A few magma kilns later I'm sitting pretty on a small mountain of valuable pottery.
The mayor just demanded that a brass bed be placed in his bedroom. That'll be a rude awakening. Is it even possible to make a bed out of anything but wood? Even with a strange mood?