Experts just found a 3D map that was carved into quartz sandstone likely 13,000 years ago. Located within the famed Segognole ...

Pure quartz, or “rock crystal” from Brazil. Source: Didier Descouens, CC BY-SA 4.0 Pick up a rock almost anywhere on Earth and chances are pretty good that there’s at least some quartz in it.

cooling and crystallizing over millions of years to form Spruce Pine’s bounty of pegmatites—igneous rock that’s chock-full of ...

This process could explain why large gold nuggets are so often associated with quartz veins found in tectonically active areas or even rocks shattered by earthquakes. “In essence, the quartz ...

But rock will often contain quartz. So, understanding how quartz changes under different radiation loads can help us predict how concrete should also behave in general," said Professor Ippei ...

Hole 1 on Pad A intersected classic quartz-sericite-pyrite altered rocks found peripheral to most porphyry copper deposits. Holes 2,3,4,5 were fanned out from Pad B. These holes intersected a ...

We're after pure gold, but rock that contains gold also includes lots of other materials such as quartz, calcite, and the sulfides of other metals. Since we need to separate the gold from the rest ...