Surface Indications Of Quartz Adularia Epithermal Deposits
May 2015 by Alex DolbeareI am going to keep to the basics of surface indications and visual clues in the rocks and minerals themselves that help me find gold-bearing veins in this classification of deposits.
I’ve been fascinated by iron minerals for many years. So let’s take a look at this very interesting and colorful element.
Two of the major factors affecting the profitability of a placer mining enterprise are the relative efficiency of the mining equipment, and the rate and percentage of recovery obtained while conducting mining operations.
Even though these were some of the earliest placer deposits to be worked, there is still plenty of gold left today—it just takes more work to recover. Knowing about the old locations where gold has been found is the first step to success.
In September 1861, on a round-about prospecting journey homeward, five California gold miners discovered gold in the area now called Florence. While watering the horses, one of the men noticed a golden color on a piece of slate bedrock in the stream...
The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
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 • Ask The Experts • Ask The Experts • California's Mother Lode Quartz Veins • Key to Successful Prospecting: Confidence • What To Look For—And Look Out For—In A Placer Mineral Report • Additional Note on Bluff's Beach • Montana’s Rosetta Stone: Discovering Mines In The Treasure State • Perception of Mining vs. Reality • Partnering for Tax Savings • Over The Divide: Charles Lewis Garrett • Piggin' for Gold • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver