France Bridal Wedding Yellow Sapphire Jewelery Collection 1

   France Jewelery
By Aamir Mannan.               YELLOW SAPPHIRE
Yellow sapphire from australia or montana contain enough iron to show quite strongly the group of three bands in the blue which are at their full strength in green sapphire. the strongest of these is at 4500A, and this may be seen faintly even in some ceylon 

yellow sapphires which contain very little iron. The other bands are at 4600 and 47I0 A. The last name band can be always seen as distinct from the other two,which tend to coalesce when at full strength. It is important to be able to distinguish this three fold complex band from the solid block of absorption which is seen in chrysoberyl. In addition to proving the stone to be a yellow sapphire, three bands, which seen are, also a guarentee that the stone is not synthetic. Synthetic yellow sapphires are coloured with nickel, not iron, and show no absorption bands.