Scientists race to restore Calif.'s largest — and contaminated — freshwater lake
Clear Lake, California’s largest freshwater lake, which is next to an abandoned mercury mine, turned a sickly shade of ...
GIA Field Gemology Team Completes One-Hundredth Expedition
Visit to Tanzania and Kenya marks 17 years of rigorous scientific studyCarlsbad, Jan. 30, 2025 (GLOBE NEWSWIRE) -- CARLSBAD, Calif. – January 30, 2025 – GIA field gemologists recently completed their ...
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Zambia’s debt cover fears may be behind gemstones tax hike
GRIZZLY by name, grisly by nature. Senegalese-owned family business Grizzly Mining flooded the Zambian emerald market to such ...