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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  27-Nov-2014 by Laura deGroot (LDG)

Summary Help Help

NMI
Name GEM (L.441), NUTCRACKER Mining Division Nanaimo
BCGS Map 092F078
Status Prospect NTS Map 092F10E
Latitude 049º 44' 07'' UTM 10 (NAD 83)
Longitude 124º 34' 32'' Northing 5510390
Easting 386468
Commodities Gold, Silver, Lead, Copper Deposit Types I06 : Cu+/-Ag quartz veins
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The GEM occurrence is located on Texada Island, approximately 10 kilometres northwest of Gillies Bay and 1 kilometre southeast of Kirk Lake.

The showing is underlain by amygdaloidal basalt of the Upper Triassic Karmutsen Formation (Vancouver Group) close to the intersection of the Kirk Lake and Holly faults.

A fault zone in basalt hosts steeply dipping quartz veinlets and an occasional massive vein with subordinate amounts of calcite. The zone ranges in width from 0.6 to 1.2 metres. Mineralization consists of pyrite, local native gold, galena, occasional chalcopyrite and minor pyrrhotite and arsenopyrite. High, but erratic, gold with minor silver values occur along the length of the vein system.

A sample (XR31767) of a brecciated, pyritic quartz-calcite vein mineralized with chalcopyrite and minor galena assayed 5.45 grams per tonne gold (Assessment Report 18672).

Past development includes shafts and drifting on two levels. Although production records report 2 tonnes of ore mined, the workings at the mine site indicate that considerably more mining took place (Assessment Report 18672).

The area was originally worked intermittently from the 1890s until 1928. Several shafts were driven over this time period. In 1928, Texada Gulf Mining Co. Ltd. took over the GEM claim, which was held by B.C. Gold Mines Ltd., dewatered the workings and completed exploratory work in the area. The exploration was unsuccessful and the property was dropped.

In 1989, Echo Bay Mines Ltd. completed prospecting in the area.

In 1993, Robert A. Perry owned the claims encompassing the GEM showing and completed a geochemical soil survey and rock sampling in the area. Sample L93-01 was taken approximately 250 metres west of the GEM workings and assayed 0.97 per cent copper, 6.7 grams per tonne silver and 1.23 grams per tonne gold (Assessment Report 23017).

In 1997, Robert A. Perry conducted a geophysical self-potential survey on the property.

Bibliography
EMPR AR 1896-554; 1897-564; 1898-1145; 1903-H205; 1914-K381; 1916-K357; 1923-A259; 1924-B248,B249; *1925-A284-A286; 1926-A315,A316; 1927-358; 1928-C383,C384
EMPR ASS RPT *6414, *18672, *23017, 25126
EMPR FIELDWORK 1989, pp. 257-270
EMPR GEM 1977-E113
EMPR OF 1988-28; 1990-3
EMPR PF (District Geologist photos and assays, 2000; Prospectors Report 1994-21 by Robert
Duker; Prospectors Report 1999-25 by Robert Duker)
GSC EC GEOL 3, pp. 86-102
GSC MAP 1386A; 17-1968
GSC MEM 58, p. 93
GSC OF 463
GSC P 68-50
GSC SUM RPT 1924 Part A, pp. 106-144

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