Amethyst has been mined for over 150 years in the Los Catalanes District of Uruguay, where the research was carried out. This is an area renowned for the deep violet color and high quality of its gems ...

These substitutions alter how the mineral absorbs and reflects light, resulting in color. Let’s look at some examples.

Not into the typical ruby red manicures for the holiday season? For winter 2025, purple chrome nails are the unexpected trend ...