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 (Steven Universe) during the episode's storyline that her sunglasses help her channel her future vision. According to Sugar, Garnet was intended to be a fusion since the pilot episode, though the characters of Ruby and Sapphire came into focus while Sugar was writing for Garnet. Sugar described the process as "reverse engineering" the two personalities based on what the production team brought to the show. The first time viewers learn that Garnet is a fusion is the finale of the first season, "Jail Break", but hints and foreshadowing in earlier episodes had led many viewers to suspect it earlier. Neither Ruby nor