Ruby rough - one side polished

Rubin pins slightly polished raw. Raw Rubin pens, semi-polished on one side. Very nice you can see here the transition and equality of ruby and sapphire. Bluish or grayish color is called sapphire, red would be more for the ruby.
Very interesting is that one can see from these stones to both the raw rock, as well as the precious stone looks when it is polished. In addition, sometimes the approach is to see the 6-square of the ruby crystal. A ruby rough stone with polished tip.
Size: about 2.5 to 4 cm in length, about 1 to 2 cm thick.
Origin: India