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.Death Valley Find is Apparent Hoax
Jerry Freeman became an instant celebrity in January by announcing the discovery of a 149-year-old trunk belonging to a band of Gold Rush settlers he's obsessively researched for more than a decade.
Platinum in Nevada
Platinum group metals (PGMs) have been noted at a few localities in Nevada, especially in Clark County. Unfortunately, some of these occurrences have been associated, in the past, with fraudulent schemes. The amount of PGMs found so far has not been enough for commercially important mining operations, but the mere fact that PGMs are present is worthy of note.
Principles of Designing Your Mill Production System, Part II: Mill Design
Starting small with quick profitability gives you a lot of financial elbow room plus real-world experience that can be used for final mill design.
Melman on Gold & Silver
Rapid reversals seemed to be the theme of news events during the past month. For example, while the economy generated relatively poor job growth of only 100,000 or so during March, April’s number soared to 274,000—far above expectations.
Legislative and Regulatory Update
• Big banks penalized for rigging gold price
• Mining royalties excluded from reconciliation bill
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Tools of the Modern Prospector: The GPS
GPS provides the prospector a precise way of knowing just where something (like a mine) is located. There are many thousands of lost mine stories—some real, and some made up. The use of a GPS could well have made the difference to accurately record their location.
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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
