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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.Legislative and Regulatory Update AB 1032—Where Do We Go From Here?
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How Do I Recover Gold In Black Sands?
Prospectors deal with black sands in lots of different ways. I know that some prospectors worry about getting every speck of gold and save black sands in buckets until they have hundreds of pounds.
Alternative Gold Leaching Methods
The ideal leaching chemical would leave behind what we don't want or need in the ore and take only the valuable metals.
Rio Employees Face Trade Secrets, Bribery Charges
China has formally arrested four employees of Anglo-Australian mining giant Rio Tinto Ltd. on charges of infringing trade secrets and bribery...
Over The Divide: Kenneth Leon Harn
A New Prospecting Spot
Once indicators start showing up along or below a contact I start to get excited. When I have shale, and outcroppings of diorite with iron-red, gritty soil and some clay thrown in, I really get lightheaded. I may be a mile away from the nearest diggings but that’s okay. I just found a spot that could provide some nice nugget hunting.
Building A Mine—Dust Devil Sunstones
Establishing a gemstone mine, like any other mining operation, is a difficult proposition. This is especially true if you are starting out from scratch without loads of money to get the business going.
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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
