All Articles
Fire Agate in Arizona
June 2002 by Edgar B. Heylmun, PhD
Agate, a banded form of chalcedony (cryptocrystalline quartz), has been used as a gemstone for over 7,000 years. Romans cut and polished agate, and this practice was taken to new heights in Germany in the 16th century.Additional articles that might interest you...
The Bawl Mill
January 2000
• Australians know how to do a fundraiser
• She shared a toothbrush but...
• This IRS employee will share her winnings—with the IRS!...
• A diamond is forever (almost)...
• Australians know how to do a fundraiser
• She shared a toothbrush but...
• This IRS employee will share her winnings—with the IRS!...
• A diamond is forever (almost)...
Trade-Ins, Swaps and Like-Kind Exchanges
February 2017
While most prospectors, mine operators and business owners are aware that “like-kind” exchanges can be an excellent way to postpone the gain resulting when any of the operation’s assets are disposed of, few give any thought to the value...
While most prospectors, mine operators and business owners are aware that “like-kind” exchanges can be an excellent way to postpone the gain resulting when any of the operation’s assets are disposed of, few give any thought to the value...
Critical Metals: Copper
May 2012
From time to time I’ve been doing a series on critical metals and how important they are to our complex and technological society. This month we are going to take a look at copper, and how important that metal is to our modern lives.
From time to time I’ve been doing a series on critical metals and how important they are to our complex and technological society. This month we are going to take a look at copper, and how important that metal is to our modern lives.
Picks & Pans: Exploring Wyoming's High Desert
July 2002
In an untamed and lonely part of Wyoming’s high desert sits a deposit of gold so large, and so vast, that even today its volume remains a mystery. With an aerial extent of over 10 square miles and a depth of nearly 7,000 feet...
In an untamed and lonely part of Wyoming’s high desert sits a deposit of gold so large, and so vast, that even today its volume remains a mystery. With an aerial extent of over 10 square miles and a depth of nearly 7,000 feet...
Wake Up Voters! Oregon SB 838 Study Group Update
October 2014
They want to close our roads on public land (built by taxpayer funds) to keep us and our disabled veterans out. And it won’t stop with just mining.
They want to close our roads on public land (built by taxpayer funds) to keep us and our disabled veterans out. And it won’t stop with just mining.
Melman on Gold & Silver
September 2004
One of the most frequently quoted sayings on Wall Street is that “markets love to climb a wall of worry.” We’re not so sure about the “climbing” part of it...
One of the most frequently quoted sayings on Wall Street is that “markets love to climb a wall of worry.” We’re not so sure about the “climbing” part of it...
Using Rock Formations to Your Advantage
June 2005
Over the past twenty or more years, the traditional “seat of the pants” science of using mineral identification tables as a means to identify common ore minerals, their associated rock-forming minerals and rocks, has slowly become a lost art.
Over the past twenty or more years, the traditional “seat of the pants” science of using mineral identification tables as a means to identify common ore minerals, their associated rock-forming minerals and rocks, has slowly become a lost art.
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The Bawl Mill
• ICMJ Elected Prospecting Magazine of 2002
• Mining Investment—Or Fraud?
• Gold in Suriname
• Golden Age of Gold Dredges
• Prospecting With Limited Equipment
• Looking Back
• Beryllium in Utah
• Company Notes
• Picks & Pans: The Gold of "Eldorado Canyon"—Mariposa County, California
• The Canton Lead
• NAS Agrees to Review Superfund Science
• Tight Budgets Force Forest Service to Cut Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices