Any orthodontic department in the United States can nominate one of its students for the award.Winner will receive more than $10,000 worth of products, services, and travel expenses from American Orthodontics, JCO, and Dolphin.Application deadline is October 23.
Rhodonite is found in deposits mainly in Australia, Brazil, British Columbia, India, Japan, Madagascar, Mexico, New Zealand and the United State in Alaska, California, Montana, New Jersey, New Mexico, North Carolina and Washington state. Rhodonite is a stone of grace and elegance.
Thorium is found in nature in the form of the oxide thorite, ThO2, which forms crystals as thorianite . It appears in the form of thorium phosphate in monazite sand. Thorium is found in the mineral aeschynite and euxenite. Thorium has been used in the manufacture of mantles for gas lanterns. The fabric of the mantles is saturated with thorium nitrate and cerium nitrate. The burning of the mantles leaves a residue of thorium and cerium dioxides.