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Clums Fork Prospect, Circle District, Yukon-Koyukuk Borough, Alaska, USA

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Location: The location is along Volcano Creek, a tributary of the Clums Fork, in the SE1/4 SE1/4 sec. 2, T. 3 N., R. 11 E. Clums Fork is a tributary of Birch Creek.
Geology: Diamonds ranging from 0.10 to 0.98 carats were recovered from placer operations on Volcano Creek, a few hundred feet downslope of the 'Crazy-8' possible lamproite structure. These alluvial diamonds have sharp edges and lack abrasions, which may indicate that they did not travel far from their source. Subsequent invesigations revealed G3 and G5 garnets, plus zircons which may indicate a lamproite source (The Mining Record, April 13, 1994).
Workings: Reverse circulation drilling and trenching occurred in 1993 and 1994 (The Mining Record, July 6, 1994, p. 3).

Commodities (Major) - Diamond
Development Status: None

Mineral List

1 entry listed. 1 valid mineral.

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The Mining Record, April 13, 1994; The Mining Record, July 6, 1994.

Mineral and/or Locality  
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