Can You Recognize Valuable Ores?
August 2016 by Chris RalphThe process of recognizing ores all starts with being able to recognize some basic minerals and knowing what hard rock ore looks like in the districts where you prospect.
Potholes in bedrock can trap placer minerals and even be glory holes. They are, at least, interesting geologic phenomena, and at best, a treasure trove of gold nuggets.
Geology is a science of general tendencies with frequent exceptions, not one of hard and fast rules that are always true and never vary. For almost every well-accepted rule of gold deposits, I can point you to a number of important exceptions.
...two jadeite locations in California have been thoroughly researched by geologists. There are no doubt others that lie in wait.
There are a large number of different kinds of gangue minerals, and each of them has its own tale to contribute to the story of the chemistry and geology of a deposit.
Quiz yourself about the stream in figure 5. Based on your previous knowledge of where gold is found in a stream and in this article, where do you think you will find the most gold?
• "...just about more than I can stand."
• "I hope you can answer my number one question..."
• "...I still go out and mine a little at my old stompin' grounds in Siskiyou County..."
• "...New Prospecting Club in the Southeast."
• "...9 ounces...in two weeks."
• "...It's no secret..."
The faulting, folding and shearing that occurred in the Mother Lode belt has created zones of structurally weak rocks or contacts between different types of rock, which has been favorable for the deposition of gold bearing ores.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts • Ask The Experts • Revisiting the Rocker Box • Follow Up to "Just One More Time" • The Highs and Lows of Drywashing • Successful Detecting Requires Attention to Detail—Part I • Panning for Gold on Canyon Creek • China Closing More Than 1,000 Mines • Habits, Procedure, and Where Is The Gold? • Exploring A Historic Lode Mine • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver
MMAC & PLP Update