The gemstone spinel, known for its vibrant colors resembling gems like rubies and sapphires, has now been shown to be capable ...

There are many examples in nature, including gemstones and paint pigments. Even the color of blood comes from the protein hemoglobin, which contains iron. Investigating the colors of compounds ...

Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...

From Louis Vuitton's pink pendants to Cartier's reimagined Panthère bracelet, these are the baubles ushering in fresh trends ...