Rubies and emeralds have the colors they do because, like many substances, they absorb some colors of light. Most visible light, like sunlight, is composed of all the colors of the rainbow: red, ...

Blue Sapphire and Yellow Sapphire are not worn together normally since both stones have incredibly high energy from planets.

Hundreds of vendors from dozens of countries converged in Tucson, Arizona, for the annual Gem and Mineral Show, where the best and most impressive gems, minerals, and fossils turn the past into profit ...

GIA’s laboratories use advanced instrumentation and research to deliver accurate grading, identification, and origin ...

Rubies are mainly made up of the mineral corundum, which is composed of the elements aluminium and oxygen in a regular, repeating array. Each aluminium ion is surrounded by six oxygen ions.

Crystal field theory makes predictions about how a transition metal ion's structure is affected by the other atoms surrounding it. Rubies are mainly made up of the mineral corundum, which is composed ...

Rubies are mainly made up of the mineral corundum, which is composed of the elements aluminum and oxygen in a regular, repeating array. Each aluminum ion is surrounded by six oxygen ions.

While the console is essentially dead, the Nintendo 3DS has one of the most robust libraries stacked full of quality titles — though it did take some time to fill out. The handheld saw some ...