Heavy Glacial Rocks and Gold in the Midwest
December 2013 by Chuck LassiterOver the years, I've noticed a pattern in the type of rocks associated with the best gold deposits in Midwestern glacial gravel.
After your excitement peaks when you first receive the high gold assay from the vein you just exposed, you ponder how you will extract and sell your gold. You will need to develop a flow sheet for your process to optimize your recovery and minimize your costs and permit requirements.
The first experience involved an overgrown gold mine operated during the 1880s. A razed mill adjoined the mine and could be glimpsed from the isolated public dirt road I was traveling.
When prospecting for lithium, after confirming for macro attributes through research and field work, including examination of surface geology, the main tool is an accurate lithium assay.
One of the first minerals most prospectors learn to recognize is quartz, because, in the right circumstances, it can be an excellent indicator mineral for prospectors. Quartz is common, easy to identify, and is often associated with gold and other valuable metal deposits.
Detectors have been around for decades now. And with thousands of them swinging, many of the best or at least most likely nugget places have seen a swinging coil. The part that amazes me is that so many nuggets still get pulled out of these seemingly pounded places.
Gold trapped in the cracks can be encrusted close to the walls or mixed with sand and pebbles, making the gold difficult to see and then extract. Crevicing requires a lot of patience to achieve positive results.
The first pieces found were in a spot that most gold hunters would not even detect, right in the middle of a downslope meadow.
The Bawl Mill • Ask the Experts • Ask the Experts • Ask the Experts • Sierra County Gold—Part I • ICMJ's Annual Index • Ophir—Possibly the Best Kept Secret in Alaska—Part II • Hunting for Hardrock: The Basics • Gold in the San Francisco District Oatman, Mohave County, Arizona • Strategic Metals—Part II • The Amazing Mineral Tourmaline • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices