Show california MINERALS the statistical division of the state mining bureau under the direction of fletcher hamilton state mineralogist has now received complete returns from the operators on the output of a number of the mineral products for 1918 the data are given herein in advance of the main report in ord order er that those interested may receive the information at an early date the date of publication li of the final and complete bulletin on the mineral yield of the year is dependent upon the promptness of the replies from the operators so far this season the bulk of the returns have come in earlier and in better form than in previous years for which reason it is expected that the final bulletin zul letin will be issued earlier than usual the output of asvestos as in 1918 amounted to tons valued at as against tons worth in 1917 the material was entirely of the chrysotile variety and came from alameda calaveras talaveras Cala veras and nevada counties mainly the last named it was employed principally in cement stucco flooring and steam pipe covering some of the nevada county product is of no 1 1 spinning fiber the output of borax in 1918 amounted to tons valued at as against tons worth in 1917 the product is entirely from the deposits of inyo and los angeles counties the out output put of cement in 1918 amounted to barrels valued at compared with barrels worth in 1917 because of the curtailment in gen eral building operations on account of the war there was a decrease in the volume of cement used but the average selling price was materially higher the result was a net increase of in the total value over the preceding year the output of magnesium salts in 1918 amounted to 1008 tons valued at compared with 1064 tons worth in 1917 these salts were the product of bittern waters at two plants on san francisco bay and one at long beach and consisted mainly of magnesium chloride sold for use in sorel cement for flooring and stucco A small amount of magnesium sulphate was also made at one of the alameda county plants the output of pyrite in 1918 amounted to tons valued at as against tons worth in 1917 the material came from two properties in alameda county and one each in el dorado and shasta counties and was utilized for the manufacture of sulphuric acid the output of aumic and volcanic ash in 1918 amounted to 2114 tons valued at as against tons worth in 1917 the increase was due to shipments from a newly operated deposit near mt shasta in siskiyou you county and to larger shipments from imperial county both of these deposits are of the vesicular block pumice A small tonnage of high grade volcanic ash was sold from humboldt county there was a small output of barytes in monterey county cadmium in shasta county in riverside county lithia mica in san diego county onyx marble in solona county and serpentine se marble in los angeles county of a total value of As there was but a single operator on each of these substances in each locality the figures are combined so as not to reveal the individuals business there was a small tonnage of sulphur produced in 1918 at each of two new plants in colusa calusa and inyo counties toward the end of the year but none of the product had been shipped up to december 31 |