From Magma To Treasure: Scientists Uncover Secrets of Gold’s Journey Through Magmatic Fluids
A team from UNIGE is transforming our understanding of gold transport and ore deposit formation by investigating sulfur in ...
Gemological Institute of America20h
The Natural Formation and Occurrence of Green Quartz
Amethyst may develop into the more common citrine and rarer green quartz naturally under certain geologic conditions. On the California-Nevada border, just north of Reno, amethyst, citrine, and green ...