One of nature’s wondrous phenomena is the formation of ice crystals when temperatures outside get really cold. Moisture in the air freezes on grass, tree branches, whatever water droplets can grab onto, and form the most beautiful patterns. When water freezes, it has a crystalline structure. So, often you can see incredible hexagonal or feathery spike formations, almost always in shady spots where direct sunlight can’t melt them. We were taking a walk through our neighborhood when we came across many beautiful examples of rime ice, such as that on ivy in the image above.