28 This vein contains galena and sphalerite in rich bunches, but is generally mineralized with arsenopyrite and pyrite with considerable siderite in a quartzose gangue, and carries much higher gold values than any of the other veins. Analyses from No. 1 Vein, Silver Standard Mine. Horiz. dist. Width ; Length} Gold | Silver No from of of in ozs. } in ozs. Remarks previous sample vein | sample} aton a ton 1) North end.......... AL TG el eae 0-42 12-36 |Side of shaft, 12 ft. below surface. 2 Ota southeemastie. OS ints ese 0-20 | 14-45 |Side of shaft, 12 ft. below surface. Gi eS eran § Benet Aes axl) 2 ft. 0-14 2-12 |Outerop. ANG = Dae a terre ate Des Oe 0-23 | 29-31 |Mainly solid zine blende 5 | SA ete Se ier ee 2 ft. Dies 0-54 6-34 |Some solid zine blende (G] poms: Dose ACE Mater eer 12 in me 0-16 5-28 |Some solid zine blende (outcrop) LA SEO AS eri okra 2 ft. Da 0-90 | 14-72 |13 ft. below surface [3) PE) Saga en gt ane Srey Di 4“ 0-10 2-74 |19 ft. below surface 9} Contiguous south....} 14 in. Aes 1:00 |} 13-00 |Outcrop; mainly solid zine blende 10} 4 ft. south........ Aides 4 0-80 | 23-40 |Outcrop; mainly solid zine blende 1 str pete IA ca aero iy 4“ 0-50 ; 13-10 }Outcrop 1D et OP a ee Ces 12.‘ 4“ 0:75 | 26-95 |Outerop TS lice eee tee oe 6 “ H 0-30; 9-80 |Outcrop 41250 RS os i te Bao eee ae, 0-04} 7-50 Separate cut Picked zinc ore from dump: gold, 0-15 ounce; silver, 20-45 ounces a ton. 2 Picked mixed ore from dump, with much arsenopyrite: gold, 1-10 ounce; silver, 19-90 ounces a ton. - Average of all samples, length 100 feet, width 1-7 feet: gold, 0-35 ounce; silver, 10-72 ounces a ton Norse. These analyses were furnished by the superintendent of the mine. No. 2 vein is 100 feet distant from No. 1 and outcrops about 50 feet vertically above it. It has been opened for 300 feet and shows a vein 6 inches to 1 foot in width, carrying some ore. No. 8 vein was the first encountered in the main crosscut tunnel, at 140 feet from the portal. It here showed about 6 inches of mixed ore. No. 4 vein has been exposed at intervals along the strike for a distance of over 1,000 feet, and by a shaft 35 feet in depth. Ten tons of ore sorted from this shaft ran 289 ounces in silver. This vein has a sharply marked hangwall and the ore ranges from 12 inches to 3 feet in width. The vein was intersected by the main crosscut tunnel at 410 feet from the portal, and drifting has opened an ore-shoot 110 feet long pitching 40 degrees to south, with the face still in ore. Samples along the drift, intended to be an average, were taken by the company, and the values are given on page 29. In stoping on this vein conditions were found to remain constant, the northern half of the shoot being almost solid sphalerite, whereas the southern end was mixed ore or was high in galena and tetrahedrite. The gangue is milky quartz and it has been crushed and sheared so that the ore is in veinlets as well as in massive replacements. Cross fissures filled with milky quartz are cut off by the main vein carrying the metallics. Along one or both of the walls there is frequently a band of siderite with arsenopyrite, the central portion of the vein containing the silver-