Gemstone industry in Greenland gemstone ruby. The native inhabitants continued to assist the European explorers with their ruby exploration, leading them to some half dozen locations, spread out for over a hundred miles along the southwest shores of Greenland, known as the Kitaa Coast. Ruby and pink sapphire are the red and pink varieties of the mineral corundum, an aluminum-oxide mineral Al2O3. The pink/red colour is formed in corundum by adding the element chromium to its crystal structure. Spectroscopy of rubies from the Aappaluttoq occurrence in Greenland confirm the presence of chromium as well as showing absorption in the UV region indicating high Fe
Garnet High School Garnet High School Garnet High School, also known as Garnet Career Center and Garnet Adult Education Center, is a historic African American high school in Charleston, West Virginia. It is a three-story, brick structure, constructed in 1928-29 from the plans of the prestigious Charleston architectural firm of Warne, Tucker, Silling and Hutchison, and dedicated December 2–4, 1929. The facade features a limestone arched entrance containing two sets of double doors, transom light, and a limestone tympanum. Garnet was one of three high schools in the Kanawha Valley built for African American students. It closed as a high school in 1956,