CRYSTAL PARK, Mont. — Molten granite formed the Pioneer Mountain Range in southwest Montana about 72-million years ago. As the granite cooled, water carried quartz and other minerals through the rocks ...

While quartz has long been used in timepieces, new models by Chanel and Van Cleef & Arpels show it having a moment. By Joshua Hendren Decorative gems have adorned watches for centuries. But, beyond ...

Neolithic people sprinkled the crystals over burials. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Hundreds of fragments of a rare transparent ...

Tay Herbaugh has rocks in their pockets. In one, a smooth green opal (to help feel emotions but not be ruled by them). In the other, merlinite (for spiritual awareness). At home, there's a green ...

State of study. The state of research on some rock crystal ewers and related vessels from Islamic lands / Jens Kröger. Availability, carving techniques, and character of rock crystal. Madagascar, the ...