Even though sapphire is most widely used, and most worthy, in its deep blue variety, the precious stone occurs in all colours besides purple, with which the gemstone might be termed ruby. Corundum that's even a shade considerably less purple than ruby is mechanically identified as sapphire — pink sapphire. https://plants-and-herbs58035.bligblogging.com/27292097/diabetes-treatments-no-further-a-mystery