MB Silver

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The MB property is located about 22 kilometers north of Stewart and 15 kilometers east of the Silver Coin project. The property covers an area of Hazelton pyroclastic volcanic rocks in contact with a variety of intrusive plutons associated with the main Coast range Batholith.

Exploration between 1999 and 2007 has indicated three different mineralization types located on the property including a quartz-calcite stockwork with galena-sphalerite over widths up to 4 meters, a wide sericite altered zone with a weak quartz-sulphide stockwork and wide zones of replacement mineralization at lower elevations.

The first type of mineralization is located in the northwest portion of the property at higher elevations. Variable amounts of galena-sphalerite and chalcopyrite occur along a stockwork that is from 1 to 4 metres wide along a strike length of at least 200 metres. Grab samples in previous work has obtained up to 600 g/t silver from massive galena-sphalerite.

A gold bearing zone has been outlined over a strike length of at least 650 meters and a width that varies from 40 meters on the north exposure to a width of 150 meters on the south end. This zone is obscured by overburden at both the north and south ends of the outlined limits. Gold mineralization appears to be associated with pyrite stringers that average up to 10% of the rock and a quartz-chalcopyrite stockwork within the altered zone. Assays up to 1 g/t gold have been obtained in several of the sampled pyritic sites. Trenching over the chalcopyrite bearing quartz veinlets indicated consistent assays of 0.4 g/t gold over the entire length of trenches that were up to 15 metres long.

The primary mineralization explored on the property consists of at least seven main (Mann, High Grade, No. 3, DeMann, Franmar, Four Bees and South Mann) and four minor (North, WoMann, Waterfall and Fault Breccia) replacement zones tested with trenches, previous open cuts and/or 6 different adits. The mineralization occurs along wide bodies consisting of mainly barite, quartz, jasper, carbonates (calcite, siderite, rhodochrosite and possibly smithsonite and witherite) and sulfides (sphalerite, galena and minor chalcopyrite, bornite, tetrahedrite, jamesonite, covellite acanthite, stromeyerite and greenockite) as well as inclusions of altered country rock. Native silver occurs along a zone traced for at least 20 meters of strike length on the High Grade vein. Secondary weathering minerals, namely malachite, azurite and hydrozincite are common particularly in underground workings and along surface fractures.

The sulfides occur in the replacement bodies as coarse grains, wispy stringers and semi-massive veinlets associated with discrete lenses and stringers of quartz rich material bound by low sulfide bearing barite and calcite. High sulfide content appears to be directly dependent on quartz or silica content. Sphalerite is by far the most dominant sulfide and comprise over 70% of the sulfide content.

Between 1929 and 1938, the Mountain Boy property produced 60 tons of hand cobbed material that yielded an average 546.8 oz/ton silver, 3.2% copper and 3.15% lead per ton of ore. In 1940, mining extracted 3.08 tons grading an average 0.09 oz/ton gold, 248 oz/ton silver, 2.2% copper, 4.9% lead and 5.8% zinc.

Based on the surface and underground sampling and drilling, an indicated resource totaling 105, 555 tonnes grading 0.064% copper, 0.69% lead, 2.01% zinc, 208.9 g/t silver and 13.59% barite has been outline in three different veins. The resource is non 43-101 compliant and historical in nature. The reader should not rely on the estimate and it is used for illustration purposes only.

During the 2006 exploration program, 19 BTW diamond drill holes totaling 888.40 meters were completed from 3 different drill pad on the High Grade vein.


DDH From
2006-6 0.62 1.34 0.72 172.5 0.055 0.09 0.22
2006-7 2.32 5.03 2.71 1501.0 0.185 0.14 0.27
2006-8 2.13 6.40 4.27 1706.0 0.164 0.14 0.29
2006-9 0.00 3.66 3.66 1588.0 0.211 0.01 0.16
2006-10 0.00 5.18 5.18 5258.0 0.660 0.05 0.05
2006-11 0.00 3.66 3.66 802.0 0.120 0.14 0.14
2006-13 0.00 2.29 2.29 1485.0 0.221 0.80 0.41
2006-14 3.66 8.69 5.03 152.6 0.040 0.08 0.29
2006-15 2.13 7.92 5.79 660.0 0.140 0.29 0.23
2006-16 2.13 5.79 3.66 572.0 0.098 0.11 0.29
2006-18 6.10 9.15 3.05 842.0 0.117 0.13 0.15
2006-19 6.10 14.63 8.53 2260.0 0.404 0.48 0.56

The company plans to explore both the High Grade and Mann veins with approximately 5,000 metres of drilling in 2011. The company will drill 10 - 15 short holes to further test this zone the area of the above High Grade zone.

The program will also follow up on a hole drilled in 2006 into the Mann vein, which is up to 15 metres wide, approximately 150 meters south of the closest underground workings. This single hole that tested the zone in this area intersected 7.01 metres of 281.7 g/t silver. The closest underground working contains 2 zones, a copper bearing one yielded 3.4 m of 398.8 g/t silver while a second massive sphalerite (zinc sulphide) bearing one yielded 45.5 g/t silver over 3.0m. A surface zone correlating with the underground zones carries 1200 g/t silver over 3.65 m.

During the period August 1 to October 7, 2011 a total of 2381.21 meters of BTW diamond drilling was completed in 36 holes from 3 different pads.

Drilling indicated wide zones of replacement type mineralization containing barite, quartz, jasper, calcite, chlorite and sulphides within the Mann zone. Drilling on the south striking splays from the Mann zone indicated sparse sulphides in narrow zones of barite, calcite, chlorite and jasper. Drill hole MB-2011-1 to 18 tested the Mann zone exposed along a prominent pinnacle at the base of steep bluffs and cliffs. Drill hole MB-2011-19 to 36 tested an area of splays that are immediately south of the Mann zone.

Some of the better intersections were 396.33 g/t Ag over 4.57 m in DDH-MB-2011-1 and 4.42 m of 117.98 g/t silver in DDH-MB-2011-9 in the Mann zone.

No exploration program has been conducted on this property since 2012. A small program of surface sampling is being conducted on the High Grade vein during the 2016 field season.  

Mountain Boy Minerals Property Locations

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