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San Diego County Tourmaline
June 2001 by Frank Lorey III
San Diego County, California, has long been considered the finest source of pink tourmaline in the world. The Pala, Mesa Grande, Rincon, and Ramona districts in the northern portion of the county have produced tourmaline, kunzite, and other gems in great quantities, much of it jewelry and museum-quality specimens.Additional articles that might interest you...
Glaciers and Placer Gold Deposits
November 2016
It also happens sometimes that glaciers will bury valuable placer deposits. This occurs when the glacier goes over the top of an existing placer deposit.
It also happens sometimes that glaciers will bury valuable placer deposits. This occurs when the glacier goes over the top of an existing placer deposit.
Miners Welcome Comments by Alaska Official
December 2003
The head of Alaska’s Department of Environmental Conservation angered environmentalists by saying more than enough acres are being managed for conservation and land set-asides aren’t necessary for environmental protection.
The head of Alaska’s Department of Environmental Conservation angered environmentalists by saying more than enough acres are being managed for conservation and land set-asides aren’t necessary for environmental protection.
Permit Appears Likely for Rock Creek Mine
October 2001
The final environmental review for a proposed mine beneath the Cabinet Mountains Wilderness appears, after 14 years, to favor allowing the hotly disputed mine to proceed.
The final environmental review for a proposed mine beneath the Cabinet Mountains Wilderness appears, after 14 years, to favor allowing the hotly disputed mine to proceed.
Wall-Rock Alteration
April 2004
Wall-rock (country rock) alteration is found in all hard-rock mining districts and has been caused by hydrothermal solutions in the past history of the region. The zones of alteration have a bearing on where one might drill for ore bodies. The weekend prospector does not have the tools nor knowledge to block out ore deposits, but he can narrow down his search dramatically by understanding the zones of wall-rock alteration that he sees.
Wall-rock (country rock) alteration is found in all hard-rock mining districts and has been caused by hydrothermal solutions in the past history of the region. The zones of alteration have a bearing on where one might drill for ore bodies. The weekend prospector does not have the tools nor knowledge to block out ore deposits, but he can narrow down his search dramatically by understanding the zones of wall-rock alteration that he sees.
New Guinea Denies Existence of Gold Stash
November 2003
Wild rumors sweeping this near bankrupt Pacific nation of a multibillion dollar stash of World War II gold bullion are wrong, the government said.
Wild rumors sweeping this near bankrupt Pacific nation of a multibillion dollar stash of World War II gold bullion are wrong, the government said.
Judge Tosses Lawsuit Against Tucson-Area Mine
March 2012
A federal judge has tossed a lawsuit filed by opponents of a Tucson-area mine that had accused the US Forest Service of violating two federal laws in its handling of the mine issue.
A federal judge has tossed a lawsuit filed by opponents of a Tucson-area mine that had accused the US Forest Service of violating two federal laws in its handling of the mine issue.
Partner Withdraws from Pebble Project
October 2013
One of the partners in a massive and contentious proposed gold and copper mine in Alaska is pulling out, raising questions about the future of the project.
One of the partners in a massive and contentious proposed gold and copper mine in Alaska is pulling out, raising questions about the future of the project.
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