Once gifted by Napoleon, the heirloom is now bejeweled in December’s birthstone Abigail Eisenstadt Turquoise makes a striking contrast against diamonds in this diadem from the 1800s. But the gems were ...

ALBUQUERQUE, N.M. (KRQE) — It’s a “hydrated phosphate of copper,” but you may just know it as turquoise. The blue-green mineral widely regarded as a gemstone has significant deposits across the world, ...

My morning walk took me by the Oroville High School, and since no students were there at 6 a.m., I entered the opened gate. Passing through, I saw some bright blue objects under a shady tree, and I ...