All Articles
Niobium and Tantalum
January 2005 by Edgar B. Heylmun, PhD
Niobium (columbium) and tantalum are related metals that usually occur together and are associated with vanadium on the periodic chart of the elements. Both metals have seen increased usage in high-tech applications in recent years because of increased availability.The Bawl Mill
• People in lead houses should not throw stones...
• The Anything-but-Affordable Care Act
Comments Needed On Pebble Project Draft EIS
If you do not have the time to read the entire document, I would suggest starting with the Executive Summary that begins on page 80.
In Pursuit of Gold and Silver in the Sierra Madres—Purchasing Land in Mexico
My wife and I spent three years laying the groundwork to build a processing mill for gold, silver, lead and some zinc in the Sierra Madre Mountains of Northern Mexico, in the state of Sonora. In this installment, I describe how we purchased the land to build the new mill.
Melman on Gold & Silver
Once you have had a chance to look at our charts and quotes for this issue, I have one bit of advice. "Don't go running off to see your optometrist!"
Drywashing Arizona Gold
His findings were not exaggerated—after running 82 buckets of gravels in two days we had a remarkable 27.8 grams of gold!
Ask The Experts—Iridium
Q: I believe I have found a deposit that contains iridium. What can you tell me about iridium? Are there any tests I can do in the field to confirm it is iridium? How much is iridium worth? Where can I get it assayed? Can I refine it myself?
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The Bawl Mill
• Convention Report
• Interview with Congressman Gibbons on Mining Law Reform
• The Art of Finding Coarse Gold Part II—Pocket Hunting for Residual Placers
• Gold Canyon Resources Targets Gallium
• Tucson Mountain Chaos
• Picks & Pans: Auburn Ravine Gold
• Suit Filed to Stop Mining in Northern California
• The Iola Mine Group, Montgomery County, North Carolina
• Effectively Using a Detector and Drywasher for Placer Gold
• Mining Companies Use Conservative Valuations
• Company Notes
• Accident at Robinson Mine Leaves Two Dead
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
