Prospecting & Detecting
Recovering Fine Gold with Oleophilic Adhesion
April 2014 by Alex Dolbeare
Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
Tips for Detecting Nugget Patches
One Potato, Two Potato...
Normally the detector he was using would sound off with a definitive high-to-low tone when passed over a piece of gold, which distinguished the gold from the many high iron content "hot rocks," but this one was different...
Arizona's Youngest...and Oldest Prospector
I started with, "Hey, Rusty, tell me about the time..." and that was all it took.
Determining the Amount of Gold in Rich Ores
This is just the type of specimen that could have been easily ignored by the old-time miners. It felt a little heavier in my hand than a chunk of quartz of that size ought to have been.
California State and US National Panning Championships
Over 200 panners competed in this two-day event to decide who was the best of the best.
Chasing Float Gold—The Starry Night Wash
The sun was beginning to set, which put the light at just the right angle against the hillsides to where I believed that I spotted a very small dig and tailings pile up the hill near the top of the second wash.
Critical Minerals: Titanium—Part II
There are both hard rock and beach sand types of titanium deposits, but the hard rock deposits need to be at least 10 percent titanium while the beach sands often are economic with only two or three percent titanium.
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