ok just a couple of notes
silver being much more predominant in america than gold made up the majority of the income from the new world for spain and thus should be included in some way shape or form.
wayback someone said that the nations at this time wern't capitalist, when they accually were extreamly capitalistic (look it up, families owned the banks, families owned the businesses, capitalism really spiked under the italian revolution). Monarchy is a form of government, not economy. and the economy had been capitalism.
stone had dropped from being important by quite a bit, but was still important for those few castles, and MANY cathedrals being built.
Coal wasn't important yet, 'nuff said.
and the metal idea is a good one