29 April 2011

Friday fold: quirky quartz vein

Posted by Callan Bentley

This is a sample from the teaching collection at George Mason University:

The swirly folds exhibited by this quartz vein reminds me of von Karman vortices.

Happy Friday! For me, it’s the last day of classes of the spring semester at NOVA, though GMU is still in session for a couple more weeks. I’m grateful at the advent of warm weather, the sun, the promise of travel to western lands in June and July and August…