California's Mother Lode Quartz Veins
May 2015 by Chris RalphThe actions of the hot, ore-bearing solutions are not limited only to the deposition of material within the walls of the fissures.
Most of the commercial mineral deposits are on the south and southwest part of the range between Minersville and Milford, though small amounts of gold and silver have also been found in iron-rich outcrops in the basalt to the south of Milford.
Contacts, faults and zones of weak rock are all places that can act as a pipeline to convey gold-bearing fluids, leading to valuable deposits.
Some gems can potentially poison you, make you sterile and even make you forget who you are.
Historically, Montana has been an important gold producer, in terms of both lodes and placers, and it still produces gold for the prospector today.
In 1983, some of the ore yielded more than 2,500 ounces of gold within 30 feet of the surface. The shoot pinched to a narrow vein.
With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.
These conditions don’t just apply to Alaska and the Yukon; they apply to western Canada and even to the mountainous western United States.
The Bawl Mill • Ask The Experts • Ask The Experts • Key to Successful Prospecting: Confidence • What To Look For—And Look Out For—In A Placer Mineral Report • Additional Note on Bluff's Beach • Surface Indications Of Quartz Adularia Epithermal Deposits • 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