В древние времена, there was a difference between "рубин" in people's mouth and modern ruby. В это время, ruby was not ruby in the true sense, but refers to all red gems, например, рубеллит, красная шпинель, и гранат. , Рубины, и т. д., и со временем, the modern meaning of ruby is corundum ruby. Поэтому, этот [...]
