Spinel. A mineral occurring in octahedrons of great hardness and various colors, as red, green, blue, brown, and black, the red variety being the gem spinel ruby, It consists essentially of alumina and magnesia, but commonly contains iron and sometimes also chromium. The fine specimens of spinel ruby are worth rather more than half as much as the diamond.

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“He himself bore our sins in his body on the tree, so that we might die to sins and live for righteousness; by his wounds you have been healed.”
– 1 Peter 2:24