DOMESTIC PRODUCTION.
CRUDE PLATINUM.
The
production of crude platinum in California and Oregon in 1915 was
741.91 troy ounces, having a value of about $23,500. This was an
increase of 171.91 ounces over the production in 1914. Most of the
crude platinum came from California; only one mine in Oregon reported a
production in 1915.
The Rambler mine, Albany County, Wyo., produced platinum-bearing copper concentrates, which were shipped to eastern refiners.
REFINED PLATINUM.
According
to the reports received from the refiners of platinum, gold bullion,
and blister copper, 8,665 troy ounces of refined new metals of the
platinum group were recovered, of which 1,587 troy ounces are believed
to be of domestic origin.
New platinum and allied metals recovered by refiners, 1914-15, in troy ounces.
