Show X bt X X X SORTED AND SAMPLED j aws there are three distinct varieties ot of graphite on the market crystalline amorphous and artificial these are used to some extent for the same purpose but there are some uses to which each is especially ap plied of the two natural forms of graphite graph iio the crystalline is the more valuable and is usually a purer grade of graphite the artificial graphite has the highest market value this being due to the particular form in which some of it is produced methods method for the production of artificial graphite have been known for a great many years but it is only within the last ten years that a method has been devised for manufacturing it commercially the minerals that are used in the manufacture of metallic paint are hematite and limonite two of the iron ores when limonite is used it is necessary to roast the ores before grinding in order to drive off the matter of crystallization in the mineral this also changes the color of the mineral from yellow to a deep reddish brown it is also necessary in some cases to roast the hematite ore in order to improve the color and durability although these two minerals occur in a great many places in the united states and in enormous deposits the quantity of these ores that are suitable for making a good metallic paint is very small and there are but few localities that can furnish it the principal localities which contain ores that will make a good metallic paint are oneida cattaraugus Cattar augus and washington counties new york lehigh carbon and mercer counties pennsylvania washington and james counties tennessee and dodge county wisconsin it is also found in small quantities in several other states the greater portion of the worlds supply of natural sulphur is obtained from sicily and of this production the united states state consumes by far the larger amount the chief uses of the sulphur imported into the united states are for industrial purposes as in the manufacture of sulphuric acid and in the paper trade while that used in france and italy is for agricultural purposes la in the united states deposits of sulphur are arc known in louisiana texas arizona cal california utah idaho oregon and alaska there has been more or less development work performed on all of these deposits but their output has been very irregular the sulphur deposits of utah are located in beaver county near the millard county line the sulphur is associated with gypsum and the outcrop of ore has been traced for a distance of seven seve n or eight 0 miles the demand for sulphuric acid in the manufacture of fe fertilizers rock is beginning to tili from phosphate be largely supplied from pyrite as a chem leally pure sulphuric acid is not required for the purpose arsenic ores and to a lesser extent metallic arsenic occur widely idely distributed in many countries but in very few places are the deposits of sufficient extent to be of commercial value the chief use iise for arsenious oxide is in the manufacture of paris green although it is used to a minor extent to make green london purple lead arsenate sodium arsenate potassium arsenate and other arsenic salts in the arts or trades paris green is used to exterminate the potato bug and other insects in jurious to vegetables paris green has a peculiar light green shade possessed by no other pigment but owing to its poisonous character its use as a dye stuff is very restricted strict ed arsenic as a vermicide is used in various ways either in the form of the oxide or of an arsenate salt called sheep dip for parasites affecting sheep and cattle also as a weed killer the oxide is used in the manufacture of fine grade glassware and special enamels as a fixing and conveying substance for aniline dyes as a preservative for raw hides both in taxidermy and in storage for manufacture into leather etc the borax fields of the united states are mainly located in the desert regions of southeastern california in western nevada and in oregon almost the entire production however comes from california and nevada the nevada fields in reality are the northern extension of the california d deposits and are being largely worked by borax smith who is constructing a railroad to facilitate operations in this sec section tiou when melted at a high temperature borax has the property of dissolving metallic oxide and of forming transparent colored glass by this means the various metallic oxides may be distinguished in the flame of the blowpipe in laboratory work the property of dissolving metallic oxide makes it useful in soldering and brazing metals as it renders the surfaces to be joined clean so that the solder runs and fills the joint between them in wel welding dinv metals it is used as a flux in assaying gold and silver ores borax is used in the crucibles cruci bles or to dissolve and remove base metals metal S from the metallic lead button holding the gold and silver of the samples tested it is used also as a flux in melting gold and silver and other metal metah of late years it has been extensively used in tile the manufacture of porcelain coated ironware known as granite ware the manufacture of granite ware and of enameled bath tubs are extensive consumers of borax it is very largely used in tile the manufacture of if pottery and earthenware as a glaze and hard tough 0 grades of glass |