Toronto-based Millstream Mines (MLSM-C) has received final results from diamond drilling at its Potter base metal property near Matheson, Ont.
In total, 10 deep holes tested for depth and strike extensions to the formerly mined Potter deposit. Results were recently released from the final four holes, of which only one intersected potentially economic grades of mineralization. This increases to four the number of successful holes reported from the program.
Hole 98-5 intersected intervals of 3.6 metres (from 420.1 to 423.7 metres) grading 2.69% copper, 0.29% zinc, 0.08% cobalt and 16.8 grams silver per tonne, as well as 12.3 metres (from 507.4 to 519.7 metres) of 1.53% copper, 2.05% zinc, 0.13% cobalt and 14.4 grams silver. The latter interval included three smaller intervals of higher-grade mineralization.
Millstream says the deeper mineralized interval in hole 5 is on strike with a zone intersected in hole 97-8A. That zone averaged 1.72% copper, 4.93% zinc, 0.07% cobalt and 25.03 grams silver over 5.4 metres (from 489 to 494.4 metres).
Mineralized intersections in stepout holes 98-2 to 98-4 were insignificant, suggesting they are part of a lateral halo of low-grade mineralization.
The Potter mine operated from 1967 until 1971, when low copper prices forced its closure. Drilling has shown that the central portion of the sulphide system continues below the lowest underground workings for at least 259 metres.
Mineralization is hosted by a mafic hyaloclastite unit (with layers of graphite) that strikes northwesterly and dips steeply to the north. The mineralization plunges steeply to the west.
In related news, Millstream has decided not to option 84 unpatented mining claims that abut the southern border of the Potter property.
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