Spinel Gemstones Hardness 8.0. Often found alongside corundum .
Spinel is almost a secret among gem lovers.
It's hardness of 8, and lack of cleavage makes for a tough and durable gemstone. It mimics corundum , and crystals are found in a wide spectrum of colors, including red, orange, yellow, dark green, blue, purple, brown and black. Enhancements Spinel is not enhanced. More information on gemstone enhancements. All rights reserved.