Red spinel is a type of spinel that is highly valued for its rich, vibrant red color. It is often referred to as "ruby spinel" because of its similarities in color to ruby, but it is a distinct mineral with its own unique properties.
The red color of spinel is caused by the presence of chromium and iron in the crystal structure. The intensity and shade of the color can vary depending on the amounts of these trace elements. Red spinel is found in a range of hues, from pinkish-red to deep crimson.
Historically, red spinel has been confused with ruby due to their similar appearance, and many famous "rubies" throughout history have turned out to be red spinels upon closer inspection. Some of the most famous examples include the "Black Prince's Ruby" in the British Crown Jewels and the "Timur Ruby" in the Smithsonian Institution.
Today, red spinel is highly sought after by gem collectors and jewelry enthusiasts for its beauty and rarity. It is mined in a number of locations around the world, including Tanzania, Sri Lanka, and Vietnam. Like other types of spinel, red spinel is also used in a variety of industrial applications due to its hardness, durability, and heat resistance.
