Complex sentence: 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 (iron) content (Thirangoon, 2009).
Split into simpler sentences: Spectroscopy of rubies from the Aappaluttoq occurrence in Greenland confirm the presence of chromium. It also shows absorption in the UV region indicating high iron content (Thirangoon, 2009).