The 59th Annual Tucson Gem & Mineral Show will be held February 14-17, 2013 in the Tucson Convention Center, with this year's theme, "Fluorite, Colors of the Rainbow." The sponsoring Tucson Gem & Mineral Society posted this video preview on YouTube.
About that Saurophaganax paper
14 hours ago
why fluorite
ReplyDeletetheme by hardness?