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 ...
DILLON, 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 and ...
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 ...
The tiny town of Mount Ida is home to rock shops, you-dig quartz mines, and national forest trails.