Show I Is II I j Distribution of Mineral I Product Product I I II I II n II I iThe i iThe The sold gold anti silver nl fr product Is di divided di- di l- l vided according to It I its derivation from placers from rom dry or siliceous ores oro copper copper cop COIl per ores ore lend lena ores ore zinc ores ore copperI copper- copper I lead ad ores ore or zinc copper ores and zinc lead JeAl ores These divisions I dl lons of ot the theor or ores orca 9 from t the e d deep p mines arc are of or course courso tt td n a f certain degree arbitrary and doubt exists as ns to proper CIa classification of or many complex ores oroa In general ores orca that contain 2 per cent or more moro of ot copper are arc considered copper ores while those w with th f of or o over or r fj n per pel er cent load ire are railed called lead lad ores The Tho bulk bul of ot zinc Inc ores oros contain at least Ot 25 r r-r r ir r coat cent cont of or that thal metal met 1 Statistics collected b by tho the United d States geological ecological eolo survey and anI published In II an nn advance al chapter from u Mineral H Resources of ot the United States State Calendar Calendar Calen Calen- dar Y Year or 1005 Indicates that siliceous or 11 tiny dry ores which In general mn may be bo considered as good ores proper furnished fur Cur about 63 per cent of or the whole production and that placers pincers yielded ap approximately approximately ap- ap ap- ap proximately 28 per cent cont The haM base metal ore ores ores- furnished Nl only about bout SJ n percent percent per cent o nf of tho total output hlo th the tonnage o of or those thoe ores was exceedingly heavy Placer gold old was ns obtained In lOG 1900 lotho to lo tho the value nIno of or l 70 fine ounces aJ equivalent nt to while In 1905 the quantity was 38 only ounces valued at 2215 Alaska la was of or course most conspicuous In this great groat grat ft advance ance hut but California also added about to Its yield of or pl placer gold In 1 1006 1906 The Tho I increase cr se In California California Califor Califor- nia was the tho resu result t of or tIred dredging ln oper oper- at io mm s. s The states stateR which yielded over 01 ounces of or gold from rom dry or siliceous ores rank as M follows s olo Colorado 01 nit Cali fornia 1 Nevada South th RO Dakota Dal Alaska and Montana Ores o of oC this class necessarily necessarily sarlY include many varieties and antI several soy sev anal eral different m methods thod of or reduction aro ar applied to them The h pan Lion tion Lon process s has become almost ob obsolete olote o- o lete lote and ana Is ts used URel only at a a few Ce places in m Nevada and Arizona I flold bid obtained from copper ores in n 1 loot Or amounted tol to 11 n ounces us as against 2555 56 ou ouces ces In la lO 1003 1905 Th This I Is IJ ri ii r very moderate moderato gain contrasted wih with the tho great increase in tonnage tonta of copper cop cop- per lieu ores treated but hut is s o of course du duto I to their ordinarily low ow tenor in gold ld and silver The Tho Important Stat s ran rn ns as follows s Colo Utah Arizona Montana and amI California Tho Time rt richest liest ores ores art ar obtained from rota th the and Tintie districts in Uth Utah Tho ho ho greater ter part pam of I the copper r ores is concentrated and noe i sm Rm smelted l I the gold ol being recovered reco durIng during dur dim ing lag electrolytic refining o of time the copper From Prom lead ores proper only GO ounces of gold were recovered This Is Ig less b by about ounces than in 1905 1005 an and emphasizes the scantiness of ot tho supply of ot higher grade lead ores I Heavy losses Josses In Colorado Montana and Utah were tro only onh partly party offset b by th the smaller gains In Arizona and amid Nevada evad In gold from rom noun load oad the states tates rank as a Colow follows Colorado Arizona Utah Montana Montana Mon Ion tana tann Nevada Novada Idaho Gold GoM from rota Idaho lead ores has been bean part partly d dIn In earlier statistics stat ts It I is present hot hoy- evor t to the tho amount of ot 25 to GO 50 I lR pe pet pel ton in t tue tO heavy hen shipments ot of o COur dAlene concentrates and most mosta a of It is undoubtedly recovered Only n a vcr very small smal amount of ot gold is r recovered ere co from rom zinc ores Together wih with the Ito silver 81 It remains in the cinders cinders cin cia ders after aCtor the tho distillation of ot the tho zinc and ind clatters if It of t I d are aro aro sold pId to th the tho lend lead smelt smelt- lt- lt rt erH The zinc lead-zinc ores oros are aro generally to effect tho separation of oC C tho thin galena nn and A total jf or ounces of r g gold ld was recovered from Crom these f ores ors in 1906 1006 almost wholly from Colorado The copper lead sul- sul ores an are r confined chiefly to the Tint and Park City districts of Utah an ind the output of or gold from rom this source Increased from Crom ounces minces s In 1905 1005 lo to ounces s in 1906 I |