All Articles
Buell Park Pipe, Arizona
July 2004 by Edgar B. Heylmun, PhD
One of the world’s largest kimberlite pipes is located on the Navajo Indian Reservation in northern Arizona. The pipe is larger than any diamond-bearing pipe in South Africa. It is 16 miles north of Window Rock, the capital of the Navajo Nation.
Additional articles that might interest you...
Mining Restrictions Lifted in Southwest Alaska
January 2008
Mining restrictions will be lifted on about 1 million acres of federal land in southwest Alaska, officials have announced.
Mining restrictions will be lifted on about 1 million acres of federal land in southwest Alaska, officials have announced.
Melman on Gold & Silver
February 2008
What a start to the year! In just the first two weeks of 2008, we saw the price of gold explode to the highest levels in history at $900 per ounce, Crude Oil reach $100 per barrel, some of the world’s largest financial institutions collapse in market value, unrest spread in Pakistan following the assassination of Benazir Bhutto, the worst jobs report from the Department of Labor in at least two years and the continued erosion of residential real estate values.
What a start to the year! In just the first two weeks of 2008, we saw the price of gold explode to the highest levels in history at $900 per ounce, Crude Oil reach $100 per barrel, some of the world’s largest financial institutions collapse in market value, unrest spread in Pakistan following the assassination of Benazir Bhutto, the worst jobs report from the Department of Labor in at least two years and the continued erosion of residential real estate values.
Detecting Invisible Gold
April 2009
.jpg)
How to find gold with a metal detector: The technology certainly has improved quite a bit over the years, so when these owners are testing various types of gold on their machines and they find that some gold responds poorly or not at all...
How to find gold with a metal detector: The technology certainly has improved quite a bit over the years, so when these owners are testing various types of gold on their machines and they find that some gold responds poorly or not at all...
Ask the Experts
March 2014
Gold out of auqa regia
Gold out of auqa regia
Ask The Experts
April 2016
• Should I focus efforts on this particular rock type?
• Should I focus efforts on this particular rock type?
Melman on Gold & Silver
March 2000
The hoopla is over, the spectacular shows are just a memory. The fact is, we're stuck in the 2000s whether we like it or not! And the sad—or glad—reality is that changing the year's first number from a "one" to a "two" hasn't really changed anything other than giving us oldtimers some minor irritation now and then until we get used to things.
The hoopla is over, the spectacular shows are just a memory. The fact is, we're stuck in the 2000s whether we like it or not! And the sad—or glad—reality is that changing the year's first number from a "one" to a "two" hasn't really changed anything other than giving us oldtimers some minor irritation now and then until we get used to things.
What Was That Article Again?
July 2010
Have you ever waded through your pile of Mining Journals looking for a particular article? The annual index, published each December is a great help, but I have a better idea.
Have you ever waded through your pile of Mining Journals looking for a particular article? The annual index, published each December is a great help, but I have a better idea.
Subscription Required:
The Bawl Mill
• Mining Claim Fees Are Going Up
• Our Readers Say
• Mines and Money
• Understanding Hard Rock Mining: Terms and Methods—Part II
• Two Nevada Mines Look to Supply Own Power
• Paleontonlogical Resources Preservation Act
• Picks & Pans: Mexican "Edventure"
• Over the Divide
• Flat-Fault Gold in Sonora, Mexico
• Looking Back
• The Fern Mine
• Map Offers Look at Butte's Mining History
• Gold in China
• 2004 National Mining Hall of Fame Inductees
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
