Coal Creek originates in New Mexico and drains NW into Arizona in the Big Lue Mts. A number of prospects exist all along the creek. The country rock consists primarily of Tertiary volcanics (lots of rhyolite, tuff, etc.) and mineralogy is generally what you would find in most New Mexico rhyolite flows. Gibbs (1992) lists pseudobrookite, titanite, hematite, tridymite, phlogopite, and hollandite in the older rhyolites and erionite-offretite, heulandite, mesolite(?) quartz, and calcite in the younger flows. He also states that mineralogy is sparsely distributed but locally abundant. If you can access a map of New Mexico, find Mule Creek Post Office in the far west end of Grant Co. and head west from there. ---- Don Saathoff
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6 entries listed. 6 valid minerals.
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References
Gibbs (1992): Thirteenth Annual New Mexico Mineral Symposium, November 14 and 15, 1992.
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