LATEST. Tuesday evening.
The following Returns from two small parcels of on 1 , about lOlbs each, from the Impr>iial Treasuiy, was received by Mr R. II in is this evening, ami through his couttesy we are enabled to publish the sumo :—: — (Copy of Ccilificito of Return ) Te Aroh.'i S. nn.l G. Mining Co., Lim. W.iiorono;oinai, Dec lOth, T88 { .). Herewith are returns tor the two lots nfoie ilopo-^itet] with us for treatment fioin Imperial Trenpuiy : —
L he weight of cui'li' ore treated in No. 1 was lOlbs, an-] yielded 8 oz. of con— cenfciates, or equal lo 5 per cent of the oiioin.nl weight returned in concentrates. That is to say twenty tons of such ore would yield one ton of concentrates of assay value !
Value of one ton oFconcentrates produced from twenty tons oie. As a check on this work take the crude Dre :
lii values at L 4, and 3s per oz., Ll 6s, and 2s 81. Tofal, Ll 8s Bd. Lot 2 was evidently panned down by your associate too close, as the residue oF concentrates only weighed loz., Wing the. product from lOlbs crn le ore, or about GrlOth pf pne per cent concentrated, Aceordhisrto iliis test, it would take lfiO tons to prod nee one ton of concenrrates, Ihe value of which would be L 355 4s lid, or about 100 tons of crude ove at L 2 4s 5d per ton saved. As the assay value of the crude ore was :— *
per ton, ifc would show that about 92^ jer cent oF the assay vnlue of the cru'le ore was produced in (he concentrates, From these mechanical or hand concentrating tests it may be assured that your ore will concentrate well, and we advise yon to have bulk samples tested in onr works of. not less than one ton in each Ipt. Wm. Adam 1 !, Juvn., Afting Manasrer. Gold Silver 20 tons cm le ore 055. dwfc aw oz, dwt, cr. Nt LI 8* 31 0 2 8 13 0 4 Assay value of 1 ton concentrates as per mcehaniG.il concentrating t.-st 0 2 5 0 0 7 Or ibonfc 90 per cent of Rs<ny value, as donionstrated (by Company's assay va'uc of crude ore and tailings), which should be <« Jived in concent nites. Fri>ni the bcrd.in amalqfamntiou of iibmir 3011)8 of tailings, 70 grains retort was produced^ )ieldin<^ about 53 grains nou\ bullion, yalueil abput £2 ISs per 02.
055. (i\vt. gr. GoM 0 10 ~8 £ s d 2 5 4 Silver 0 1G 8 0 2 5 Tofal in gold nnd silver £2 7 9
oz. dwt. frr. oz. dwt. er. Gold 0 8 3 silver 2 13 21 And derti vt tho value of the tailings 0 1 15 1 15 21 Value saved 0 Gl2 0 18 0
Gold Silver oz uwt. aw 4 T IG ;it £4 per 055. 57 19 IG at 3s per oz. IG G I ■ 8 T3 II t'Qr, n 'i
GolHpei ton S 07. (iv t i»r No. 1 Crude oio 0 8 3 C'lMClMltliltOS 4 1 It) „ T.iilirus 0 1 15 No 2 Crmlb ore 0 10 8 Cnnoi-nfciates 88 4 0 „ Tailiuir* 0 3 G ?i lvor per ion ox. dwt. gr. 2 13 21 hi 19 I<> f 15 2-2 0 16 8 1 0 0 i q 0 9 18
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Te Aroha News, Volume VII, Issue 427, 11 December 1889, Page 2
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559LATEST. Tuesday evening. Te Aroha News, Volume VII, Issue 427, 11 December 1889, Page 2
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