Show GOLD DUST MILL PROVES successful TO SPEND IN EXPANSION manager 0 E kirkpatrick of the hessburg Less burg gold dust mining co was in salmon recently with the cleanup clean up of precipitates from the gold dust cyanide mill which had just completed its initial run of 30 days by way of trial says the salmon city ida herald the returns have proved so highly satisfactory according to mr kirkpat ricks account that the company is already laying plans to increase the capacity of the plant to 50 tons per 24 hours instead of 10 as at present saves a high percentage the process employed in ore treatment consists of chushin crushing z in cyanide solution to 40 mesh pulp then agitating the pulp in the cyanide this agitation is said to give a vast advantage in saving time as the process is is completed in one fourth the time required by the old method and which of course allows operation with only one fourth the tank capacity it is said that by crushing the ore to pass through a 60 mesh screen the cyanide process would still be more hasty and thorough but of course this would saddle an added cost upon treatment which would probably be in excess of the added benefits the run just completed has proved the saving of a high per cent of the values both gold and silver mining men will note that the practice of crushing eru shing in solution is different A if as is found in many mines the ore carries copper or lead along with the gold is rendered difficult because the copper or lead fouls the cyanide solutions rendering it impotent in combining with the gold by the agitation method however it is found that copper has less chance to crab the game and mr kirkpatrick says the quicker action of the new method renders it possible to treat ores containing a little copper carries some silver some of the gold dust ore contains considerable silver along with the gold and other ore of the same property carries scarcely any silver the precipitates sent this week have not been tested for silver but they are known to contain a little wards gulch famous for its rich placers of gold received its deposits from the veins of the gold dust and wards gulch gold contained so much silver that it was worth only about 14 an ounce yet some of the gold dust ores carry gold that is almost pure next step is to enlarge manager kirkpatrick says the company has fully decided to enlarge the plant by making it five times as large rge computations showing that they can extract and treat 50 tons daily with little additional labor cost and that the increased capacity will prove economical also the plan contemplates installing electric power to avert the continual payment of 15 a cord for wood as it t stands them today by the advance estimate they expect the enlarged mill and the installed power will cost them somewhere around and it will probably he be completed by next spring I 1 E W stifel of wheeling W va chief owner of the gold id dust lately spent a week at the works and he went hack back feeling very well satisfied with his investment me he would uld make no talk alk t for publication and the owners have no stock to sell 0 |