Extract from MINFILE No 093K 043:
Development status: Prospect
Name: MT. SIDNEY WILLIAMS, VAN, KLONE, MOUNT SIDNEY WILLIAMS, MT. SYDNEY WILLIAMS, MOUNT SYDNEY WILLIAMS
The Mount Sidney Williams showing occurs within ultramafic rocks of the Permian to Triassic Trembleur Intrusions. This suite of rocks is probably of ophiolitic affinity, related to the oceanic Mississippian to Triassic Cache Creek Group on which it lies.
The area is underlain by rocks informally referred to as the Mount Sidney Williams ultramafic massif which consist of serpentinized peridotite and harzburgite with pods of dunite and Cache Creek Group andesitic volcanics and argillaceous schist.
Mineralization at Mount Sidney Williams consists of asbestos, chromite, pyrite, arsenopyrite, stibnite and poor quality jade. Low gold and silver values are associated with the poor quality jade and listwanite alteration zones consisting of quartz, carbonate, mariposite and locally up to 5 per cent disseminated pyrite and arsenopyrite. One outcrop of listwanite was observed to contain coarse grained stibnite. Chromite occurs in harzburgite in small massive pods, fine grained clots and as veinlets which occasionally form a stockwork (see also 093K 039 and 072). Cross fibre chrysotile asbestos occurs in a 7.6-metre wide zone in serpentinized peridotite. Stringers vary in width from 0.3 to 3.8 centimetres and are from 0.3 to 30 centimetres apart. The asbestos fibres are brittle and of poor commercial quality (see also 093K 068).
A grab sample taken in 1988 from silicified listwanite on the Klone claim south of Tear Drop Lake assayed 0.390 gram per tonne gold, 0.2 gram per tonne silver and 0.138 per cent chromium (Assessment Report 17173).
First Point Minerals mapped and sampled in the area in 1997.
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