Thanks nitetime2! Excellent News (from Stockwatch.com) Bayhorse's DMS work improves Ag values at Bayhorse mine
2016-09-06 18:28 ET - News Release
Mr. Graeme O'Neill reports
BAYHORSE SILVER UPGRADES SILVER VALUES BY A FACTOR OF 8 AT ITS BAYHORSE MINE, OREGON, USA
Bayhorse Silver Inc. is pleased with the excellent dense media separation (DMS) results from Met-Solve Labs on a composite 136-kilogram (300 pounds) sample submitted from the Bayhorse silver mine, Oregon, United States (see press release dated July 7, 2016).
A silver upgrade of eight times was achieved from a head grade sample assaying 134.78 grams per tonne (3.9 ounces per ton) silver. The process used a heavy media of 2.75 specific gravity (SG) and a substantial 90.9 per cent of the material was rejected in the float fraction.
This created a concentrated sink fraction of 9.1 per cent of the material that contained 1,072.37 g/t (1.07 kilograms per tonne or 31.12 ounces per ton) Ag, 5.63 per cent copper and 4.674 per cent zinc. The head grade of the sample was 134.78 g/t (3.9 ounces per ton) Ag. The optimum separation size for the dense media process is between one millimetre and 25 millimetres.
One hundred ten kilograms (240 pounds) of mineralized fines material were crushed separately to determine possible additional silver recovery from reject material from the DMS process. An encouraging 4.2 per cent of the fines (4.6 kilograms or 10.1 pounds) were recovered, grading 3,349 g/t (97.4 ounce per ton) Ag, 91.02 kilograms (200.26 pounds) Cu and 53.2 kilograms (117 pounds) Zn.
This demonstrates that fines generated from crushing the DMS material and from the DMS float rejects can be gravity processed for additional metal recovery using a Wilfley table and two products can be made: a direct-shipping mineralized material and a high-grade mineralized material derived from the DMS fines.
Bayhorse's chief executive officer, Graeme O'Neill, commented, "The company's geological consultants have advised that with the excellent DMS and other gravity results, the company should target the much larger tonnage at the lower cut-off grade as estimated by Herdrick (1981), where using a 3.5-ounce-per-ton cut-off, remaining shipping mineralized material was estimated to be 577,000 tons, and using a 7.5-ounce-per-tonne Ag cut-off, 166,208 tons at an average grade of between 17 and 20 ounces per ton." Silver King mined 5,718 tons at an average grade of 16.7 ounces per ton Ag using a cut-off of six ounces per ton Ag.
Bayhorse is earning an 80-per-cent interest in the historical Bayhorse silver mine, Oregon. Bayhorse is also earning a 75-per-cent interest in the past-producing Bridging the Gap project, consisting of ASARCO's historical Crown Point, Silver King, Ranger, Wyoming, Curlew and Blackhawk silver-lead-zinc mines in Idaho's Silver Valley.
Dr. S.A. Jackson, PGeo, a qualified person and technical adviser to the company, has prepared, supervised the preparation of or approved the technical content of this press release.
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