October 29, 2009
Washington–Opponents of the proposed Pebble Mine have released a new advisory aimed at investors of mining company Anglo American plc that’s designed to raise questions about the controversial project.
The Pebble Mine Project, a joint venture between London-based Anglo American and British Columbia-based Northern Dynasty Minerals Ltd., is slated to be a gold and copper mine located at the headwaters of Bristol Bay in southwest Alaska, the world’s largest wild sockeye salmon fishery.
While the mining companies contend the mine would bring much-needed jobs to the area, those who oppose the mine’s construction worry about its environmental impact on the eco-system and, consequently, on the area residents who depend on fishing to make a living.
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New York–American Gemological Laboratories (AGL) is modifying the disclosure terminology it uses for treated rubies by exchanging the term “inorganic (fluxtype)” with “heating residues” in its descriptions of heat-treated rubies, the lab announced.
In a statement issued on Wednesday, the lab also said it would be including the statement “Heating residues are deposited along healed fractures during the heating process” as an additional description under the comments section of all grading reports for rubies.
The way in which the healing of fissures during the heating process of rubies has been handled has been a contentious topic for more than a decade.
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New York–The American Gem Trade Association Gemological Testing Center (AGTA GTC) has issued a lab update regarding dyed tourmaline.
Recently, the lab was given a pink necklace for identification that was composed of small rough beads, approximately 5 millimeters by 4 millimeters by 2 millimeters in size.
According to the AGTA GTC, a first look in the microscope showed that the gemstones were natural but dyed, and that they were not, as expected, corundum or quartz. Instead, chemical analysis led to the conclusion that the material was tourmaline.
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