People usually call the inclusions in gems “impurities.” Επομένως, the inclusions in gems are also a factor in evaluating the quality of gems; για παράδειγμα, in the quality evaluation of diamonds, an important criterion is “σαφήνεια”, ήτοι, the cleanliness of the interior of the gem. Γενικά, the less impurities in the gem, ο […]
