September and next in my birthstone color series is Sapphire Blue. Sapphire is made of corundum, which is the same mineral as Ruby. If it’s blue it’s Sapphire and if it’s red it’s Ruby. It takes only a speck of an impurity to change the mineral color. I like the turnabout that happens when an impurity becomes beauty.
For the history, mythology and chemistry of each stone, check out the Burke Museum of Natural History and Culture.
Check out pendants at Nutmeg Designs Etsy Shop.