A 700-year-old gold ring featuring rare Sri Lankan sapphire and medieval Christian symbolism has been discovered at ...

In this video Derek and I drive all the way up to North Carolina to go hunting for Ruby and Sapphire Corundum crystals at the world famous Propst Farm near Lincolnton, NC. This was my first time ...

The colours of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But have you ever wondered how they get those colours? I am an inorganic ...

The colors of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But have you ever wondered how they get those colors? I am an inorganic ...

Some of the oldest ruby is found in the southern part of West Greenland. Although the most famous locality is the Aappaluttoq deposit—where corundum is hosted by igneous rocks (N. Keulen et al., ...

The recent interest in ruby (chromium-doped corundum) as a paramagnetic material for use in masers and lasers has directed attention to the imperfections of the flame-fusion crystals.

This determined that the most abundant mineral in the axes was corundum, known as ruby in its red form and sapphire in all other colours. Hard case The majority of prehistoric stone objects are ...

THE three works cited below give much new and valuable information concerning the mode of occurrence, the processes of mining, and the uses of corundum. As the mineral is of growing economic value ...

The pendant of his necklace was studded with diamonds and a ruby at the centre. The yellow sherwani worn by the Nizam was made using topaz and floral design painted with corundum.

Oxygen ion implantation has been applied to improve the color quality of the ruby corundum gemstone. Specifically, the color enhancement of the ruby considered in this study was to bring out more ...