Report on the Geology & Gold Fields of Otago
Platinum. — Bluff
Platinum.
Bluff.
A sample of this ore was forwarded from the Bluff in September, 1873. It consisted of from 35 to 42 per cent. of platinum, black or magnetic oxide of iron not estimated, and an alloy of platinum, osmium, and iridium. The ore, in its present state, is worth in London between 7s. and 9s. per ounce.