Comparisons between Deep Sea Massive Sulphides and Near Earth Asteroids

Exploration & resource recovery, Comparison s between Deep Sea Massive Sulphides , Near Earth Asteroids , and terrestrial out cropping mineralization:

Actual and Hypothetical Markets for A steroid materials

(i) for use in-space: water, nickel-iron metal, volatiles, raw silicate; all competing with earth-launch-cost of $5,000 to $10,000 / kg. Need to crack the extraction methodology, but should be straight forward. Will develop as large commercial structures and commercial operations in space take off, trigger will be reqt for (say) 500 tonnes per yr of consumables and / or construction feedstock in orbit.

(ii) for export to Earth: science and collectibles samples (limited market, but high value); PGMs(note that stony irons have ca. 50 ppm PGMs, but again need to crack the extraction-probably using adaptation of Mond process).