Show ari arizona zona s 19 1914 14 production FIR aki duct ion the value of the gold silver copper lead and zinc produced at mines in arizona in 1914 decreased over 16 per cent as corn com pared with 1913 owing principally to the lower jower price of copper on account of the european war according to V C heikes of the 17 S geological survey who estimates the output for 1914 at compared with for 1913 there was very little decrease however in the output of copper lead and zinc and considerable increases were made in gold and silver the mine yield of gold in arizona increased from in 1913 to about in 1914 this increase of nearly 14 per cent was almost entirely in siliceous ores of gold and silver mines the tom reed gold road vulture and common wealth mines produced more than half the total gold of the state the remainder coming chief lly from copper ores increases were made at both the tom reed and gold road mines and a notable quantity came from the silver ores cyanided at the commonwealth mon wealth property several new gold mills were built one at the goldfield mine in pinal county and several in yavapai county A record production of silver was made in arizona in 1914 notwithstanding the reduced market price the output increased from ounces in 1913 to about ounces in 1914 the increase of over 13 per cent resulted from the treatment of more siliceous silver ore most of the silver came from copper ores and most of the remainder from siliceous ores and lead ore at pearce in cochise county the commonwealth mill was treating by the cyanide process about tons of silver ore a day while arizona still leads in copper production the output decreased on account of market conditions from pounds in 1913 to about pounds in 1914 a decrease of nearly pounds or about 5 per cent although the production at most of the copper plants was less the hayden plant treating ray concentrate the arizona copper company calumet arizona and consolidated arizona company made increased outputs at the miami mine production was nearly the same as in the former year although a considerable in crease was made during the first half of the year when the mill was concentta concentrating con centra ing more than tons a day at the inspiration mine construction work continued on the concentration plant and ore was treated by flotation in the test mill which has a capacity of tons a day A smelting smelling sm elting plant tr to treat concentrates from this mine and the miami mine was being constructed by the international smelting smelling Sm elting refining ning company the ray consolidated copper company during the first three quarters of the year treated over tons of ore and made over pounds of copper but the output was greatly reduced in the last half of the year at jerome the united verde was active but produced less than the usual output of pounds a month in yuma county the plant at swansea was idle ide the mines producing low grade disseminated ores including the ray consolidated miami inspiration arizona copper and detroit had a total of about pounds of coper against pounds in 1913 at many mines experiments were made with both leaching and flotation at the magma kelvin sultana and copper queen mines concentration plants were completed and at the arizona copper the mill was enlarged the output of lead was practically the same as that of 1913 when the mines produced pounds most of the metal came from the mines of the bisbee district of cochise county especially the copper queen and shattuck in mohave county the tennessee mine was a large producer and its ore which contains lead and zinc was concentrated and separated at needles california the mine production of zinc ore was close to that of 1913 when tons of concentrates and crude ore produced pounds of spelter chiefly from the golconda and tennessee mines in mohave county the largest dividend payers were the old dominion calumet arizona ra ray united unite d verde superior pittsburg miami shattuck and toni tom reed |