Ask The Experts
Ask The Experts—Separating platinum from sands using bubbles
October 2011 by Chris Ralph
I am trying to find any information about using bubbles to separate platinum from sands and small particles. I think it has to have a surfactant in the process. Do you know of this bubble tech?Ask The Experts - Is this gold?
The Portable XRF Gun
While there is no metal detector that will see only gold, there is a device that can reliably distinguish gold from lead, copper, iron or other metals. It is an X-Ray fluorescence tester, sometimes called an XRF gun.
Ask The Experts: What is a Spanish needle?
Some fellow in Texas was selling a Spanish needle—a dousing device used to recover minerals in the old days. Do you know anything about these?
Ask the Experts: VMS ore
Q: Are there any mills that handle VMS ore?
Ask the Experts
NOI or POO for small backhoe
Ask The Experts
What are these rocks?
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