User blog comment:Unownshipper/Metallurgists Wanted: Rapture's Natural Resources/@comment-3967731-20140810040802/@comment-3967731-20140810210107

"...which causes useful minerals to form near the surface where the lower temperature has them precipitate out of solution."

When you say "near the surface,"  do you mean near the Earth's crust or "the surface" relative to Rapture?

As for minerals from volcanic hot water vents, what kind of minerals? The same ones listed  above ↑ or would these be differnt ones?

I'm not sure if we need to be too concerned with the high temperatures near the volcanoes. Somehow they were able to position pipes for funneling magma for Hephaestus' geothermal core. If they made diving suits that could withstand the ocean pressure, surely some brilliant Rapture scientist could develop a heat resistant suit as well.