A dark blue (large ones look almost black) aluminum oxide. The crystals in gem quality are exceedingly rare, but not as rare as diamonds. They have powerful magical powers dealing with earth and water. They usually cannot be bought and must be either found or traded. They come from the region of Gwaelmar where the local Dwarves regards them as sacred, and thus not many leave there control. 
	
	Physical Properties
	
	*Gem quality sapphires usually don't exceed a 1 cm diameter. But its been heard of very large specimens being found and possibly used for powerful magical spells. 
	*Density is 7.92 g/mL