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Prospecting & Detecting

Mom Finds 3.72-Carat Yellow Diamond

“Much of the ground where Ms. Hollingshead found her diamond is made of unweathered volcanic rock. When it rains, flowing runoff often leaves loose gravel, and sometimes diamonds, on the surface in these areas.”

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Hard Rock 101: Micro Blasting


Micro blasting can be used to take down hanging rock, separate minerals from overburden, and collect gemstones and other high-value product with minimal damage.

A Day On The Yuba River


There weren’t as many pieces of gold, but what I did find was bigger. As I worked my way down towards the spot that I had been working the first three days, I noticed a large crack that crossed the river.

Mining for Gemstones and Mineral Specimens


It is better in a gem and mineral mining operation that the driller, blaster and mucker be the same person in order to be able to predict placement of the desired mineral enriched pockets.

Gemstones to Die For


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The “Chuck It Out” Nugget


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Trail to Treasure


We are both very experienced working this type of ground, and we quickly found the pay layer where we would focus our efforts. The bedrock has good gold, but so does the red hard pan.

Geobotany: Plants Associated With Mineral Deposits


Science has shown, over the past few centuries, that there is a direct correlation between certain plants and their geophysical surroundings.

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