Spinel is a reasonably hard mineral composed of magnesium aluminum oxide. The Spinel is usually found in green, blue, brown, violet, orange, and black, but Red Spinel is the most desirable of them all. It's is a durable gem, with a hardness of 8.0 on the Mohs Hardness Scale. The famous rock has glittering optics and is more reflective than ruby. The Red Spinel true brilliance comes out when cut and polished, rivaling the beauty of other gemstones in the same color range. Read more
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