From the tombs of pharaohs to Roman frescoes, Egyptian blue adorned everything from sacred artifacts to everyday pottery.

“The colors of Philadelphia are blue and gold,” Henry C. McCook wrote in advocating for a city flag in 1894. The Philadelphia ...

Cuprorivaite, a copper-based mineral, gives Egyptian blue its color. But ancient pigments also contained silica ... They observed that malachite yielded bright blue even after one hour of heating.

Get Instant Summarized Text (Gist) Advanced electron crystallography has revealed that carmine, a natural red pigment, possesses a complex three-dimensional porous structure composed of two Ca 2 ...

These illuminating SPF drops are infused with sheer mineral pigments that blend into the skin like a dream, leaving you with a lit-from-within glow, all while diffusing imperfections. And with a ...

The commissioning of the state-of-the-art facility, an iron ore concentrator, which is now fully operational has positioned Liberia as a leader in value-added mineral processing across West Africa ...