Chromium
Just like ruby, the color red is caused by traces of chromium.
Octahedral Crystal
This spinel crystal’s shape is an octahedron. It has eight sides.
Collectors Love Them
Spinel crystals with good shape are wanted by collectors.
For centuries, people thought spinel was ruby. It was discovered to be a separate mineral a couple of centuries ago. Even so, spinel is loved for its rich red color and history. Its crystal structure and the different colors it comes in make it special, too. Collectors love spinel crystals that are shaped nicely. Red spinel is the most popular, but it is also blue, hot pink, and bright orange.
Colors
Spinel offers us the colors of orange to rich red, bright pink, and all shades of purple, blue, and violet through bluish green.
Famous Spinel
This English crown holds a spinel once owned by Moorish and Spanish kings before Edward, Prince of Wales, was given the stone in 1367 for winning a battle. - Courtesy Time & Life Pictures/Getty Images VIVEX for Pictures Inc. Crown Co
what's in a name?
(noun) Spinel’s name may have come from the Latin word spina, which means “thorn.”

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