A gem with neon, electric blue coloration hues that is very shut in coloration for the super uncommon Paraiba Tourmalines from Brazil. Sapphire is any gem-good quality specimen of the aluminum oxide mineral corundum that is not purple. Though sapphires are frequently blue, they are often colorless or another color. https://gemstone-beads-bracelet08418.blogchaat.com/30596072/a-review-of-gemstones-and-beads