Ruby in Kyanite Although many people believe overhunting

Although many people believe overhunting by humans contributed to the extinction of mammoths

These Megalodon tooth halves are a great buy for anyone interested in science

The first tourmalines were said to be brought back to Europe from the Dutch East India Company

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Some of these uses include beads

Ruby in Kyanite Although many people believe overhuntingRuby in Kyanite is exactly as it sounds, ruby crystals formed with a matrix of kyanite. Ruby is a variety of corundum (aluminum oxide) and kyanite is an aluminum silicate that forms in sprays of blue. Rubys have become one of the most sought after gemstones in the world. Their intense, deep reds bring forth emotions of all calibers. The word ruby comes from the Latin word "ruber", meaning red. They have found their way into almost every major religion