Annual mineral show keeps Tucson glittery

Ancient skulls, a 100-ounce gold crystal, vibrant rubies, and a couple thousand unique minerals are enticing 55,000 people from across the globe to travel to the city of Tucson. It’s that time of year again, as the annual Tucson Gem, Mineral, and Fossil Showcase, the largest event of its kind, is in full swing throughout…

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