Στην αρχαιότητα, there was a difference between “ρουμπίνι” in people’s mouth and modern ruby. At that time, ruby was not ruby in the true sense, but refers to all red gems, such as rubellite, red spinel, and garnet. , Ρουμπίνια, και τα λοιπά., and over time, the modern meaning of ruby is corundum ruby. Επομένως, αυτό […]