The Identification of Rough Gem-Quality Grandidierite In December 2016 and January 2017 a rich pocket of large gem-quality Grandidierite was found in the Tranomaro region of Southern Madagascar. What set this seam of Grandidierite apart from the 2015 and early 2016 finds, was its clean genuine gem-quality crystals found. Called by some the “World’s Rarest Gem”, the previous year’s finds…
