CONVERSION OF GEUDA ( CORUNDUM) TO BLUE SAPPHIRE( GEM AND GEOLOGICAL TECHNOLOGIES)

Geuda, when subject to heat at 1800 Celsius for 3-5 hours, the conversion to Blue sapphire occurs. The bond structure of this gemstone is not affected due to the use of rice and calcium carbonate . This method is based on electrons absorbing energy from the Sunlight to jump to higher electron levels, thus causing a color change.