diagrams and photos at this site. I will say, I take issue with their claim that "single individual crystals are very uncommon." Larger crystals that are not in clusters are not common, but smaller crystals, easily identified with the naked eye or with a hand lens, are pretty common, in my experience, in the Western Cascades, where these photos were taken and in Oregon's Coast Range.
Photo unmodified. June 19, 2014. FlashEarth location.
Is This Your Hat?
2 years ago