Spinel

Spinel

Spinel (Magnesium Aluminum Oxide) is a hard Mineral that may be a variety of colours, including white, pink, blue, and black. The colour depends of what other Elements, such as Iron and Manganese, are present. Spinel is commonly found in intrusive Igneous rocks and in Metamorphic rocks. It is abundant in Afghanistan and Thailand. Quality spinel is considered a gemstone which has been used in place of Sapphire and Ruby. [LM] {CC} {SS}