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San Francisco Mint and US Gold Reserves
June 2007 by Don Robinson
In 1717, Sir Isaac Newton, Master of the British Mint, established a fixed price for gold that was equivalent to around US$20.00 per ounce. This price was for bullion gold, refined to a purity of twenty-two karats (.917 fine).
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Melman on Gold & Silver
September 2011
What gives this illustration great importance is America may be facing the same kind of dilemmas that have brought Japan’s market such long-term grief.
What gives this illustration great importance is America may be facing the same kind of dilemmas that have brought Japan’s market such long-term grief.
Uranium Deposits
July 2001
The first reported occurrence of uranium in the United States was at Central City, Colorado, in 1871. However, prior to 1922, the ore was mined for its radium content, not uranium.
The first reported occurrence of uranium in the United States was at Central City, Colorado, in 1871. However, prior to 1922, the ore was mined for its radium content, not uranium.
Ask the Experts
May 2014
Setting up a gravity dredge
Setting up a gravity dredge
The Seven Troughs Mining District
September 2016
The favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.
The favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.
Corralling Those Pesky Platinum Group Metals
June 2005
Some assay beads disappear, collapse, hide under the surface, or spread out flat while being cupelled, just as the last tiny bit of liquid litharge is driven off. This is especially true of platinum, iridium and osmium, when attempting to re-bead the filtered residue from a parted bead.
Some assay beads disappear, collapse, hide under the surface, or spread out flat while being cupelled, just as the last tiny bit of liquid litharge is driven off. This is especially true of platinum, iridium and osmium, when attempting to re-bead the filtered residue from a parted bead.
Mining Stock Quotes and Mineral & Metal Prices
August 2008
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