Arizona weekly citizen., 1886-11-20
Vanadate of Lead.
Mining ard Scientific Prs-s-l

ALu oC44ltlNc ff--s
 In tbs early part of the year the Press
 mentioned the occurrence Uf vansGais ! of lead ID Montana s3d of R lscoelifs n
 this state, and intimated that Van druus
 minerals were found ID AIIzOna- It now
 appears .hst the Arizoos snYply is de-
 veloped, and to day supplies ihe United
 States demsn 8. which are v-ry smzlL.
 Mir. Chss. R Fletcher, of E 5-toD.
 bought the Mammoth and other gold
 claims in Pinal county, Arizona, j0 m'ias
 north from Tucson, Tn November. lsSf.
 and at once his talented eye diSeOvzird
 rhst the mineral ot this gUld quartz
 vsnsdste of lead sad zinc. etc. atd t-
 at once arranged to get the mineral Ioio
 the market ss soon ss his 30 stamp yt
 mil should be fiuIshed. This took place
 In September, 1885
 Since that tune he has shipped sessril
 tors of concentrated mineral. carryIrg
 about l6 per cent vanadIc acid, the cln- centrstes being made up of cbloru vauE- date of lead, vanadste of lead al q Fana- date sf lead and zinc. The pric.. real e. ed is l2i cents per pound :. O. h. The son. whs nee if K tsks n by Puilsis ; riA cnemicsl company. and mzansRcturtd d into vansdste of ammonia.
 Since this has come into the AueTicau market the price has dropped to one third . former price. and VIi. q q not drop to 8 low figure, in wh:ch csre the uses may extend. AT prss Q. v-B, iIc acid is what IS valuable, sO.tly ca G1 ox- Idizing agent ID 'hs production Cs The zniliue black dye. NSnsdi-m miu-r-is have long been known il thu country. In New Mexico Dr. |. A. GeDtb unt many forms. In ATizoEs gre al vA.l-tlrs of sosh the red snd TOEn van O. rs, lu many localities ID P!nEl. Muhavs. lunE and MsricOpa counties. and ln The N m moth gold mine all forms gre soGn.'. also mUly bdste of lead. of nO value. but beru- IIful as crystals. In Mexico vanndiuu minerals are common, and m Montana IS a very large snd rIeh sappiy.
 A gold mine like the Man moth r-
 bliged 10 concentrate Its minsFal Cog the gold. The eOnesutTaies Cs snr 10 1s carry about $40 gold per tOu and S5 -ilyer. const quently ths ysasj Um -s- ceipts are proh.. which SOGld nat be the case were the mineral sulphnret. is stead of vRnsdstes. The RLal oi Ja.. red crystals of Mammoth by G..1th S Chlorine. 2 43 per cent; lead. t'~ pr cent; lead oxide, 69 9S pr esUf, ferrir OxIde, 4S per cent; varsdic scit. is i5 per cent; arsenic acid. 3O6 per c-n'. phOsphorc acid. .29 per cent. tnt. l00.47 per cent. The minsrss foa1c here are chiefly vsnsdanite and de>chr- kite.
 Prot. Sillimsn. ol Yale c ilieze. tauoi vsnadiuIn minerals n several parts ut AriE ma iD 1880. Prof. Wm. r Blake found them there in ihe sa ne. Aoi other parts. ID 1881. Mir. Fletchers d,sc"y-r- l-s at Mammoth, ArIZnna, resulted 70 ID of the sul j-es by the c. !, rado Scientific SOciry, by the R l ai of Vienna, and numerous mp sralOg sts ID America and EGrOIe atd through his attention they acre l.tC observe the minerslUgicsl OccurF-nc and crystalline form of the heaati.cl and somewhat valuable minerals
 The metal vanadium vas discovered about 20 years ago. 1876. and resemble somewhat. It has nn valu-. is has somehow SO. into rrI.t ss worth the prodI sious fgure of SD pHi per pound. The Mammoth Mining c.. %rizons, makes over ton daIly of yaua dIum concentrates on their EFGe van ners Ot the 3O-stamp mill, bat can with difficulty sell one ton monthly Co cb-mi- cal works. The rest goes tn the PuetI. Smelling Work. for the gold and silver the vsnsdium being Rs worthless as Pho rare metal tItsnium or teIlurun. tO the lmelter.
 VansdsnIte IS found iD Scotland and 10 Russia, though to date the Mrxi-O and Montana supplies are the richest At the Mammoth eold mine. AsIzunB. he vsnadium minerals make up p-TbaIs ? per cent of the ore, and Ot thIsz As ass -5 VT C5r. $ vEhadIc acid. The dsvel- npment of this supply in AriZ ma, where It mas been looked upon ss red lead, snG sntirely worthless. for years by lhe irst owners, is due to the form -F "Vrsr Ar. Charles R. Fletcher. tee trien cd chemist. and metsllurgist of Boston. Mass, who has kindly furnished ns 'te information. He has examined ,he sa,. ect for two yearI, and s E:si- ns-t o' known on this subject W.i 'oon apprsr as |. \. Government paul- ,hlet.