Morning Pillars ~ Upper and lower pillars brush the early morning sun over Trier, Germany.  Captured by Eva Seidenfaden (Paraselene Optics site) on February 10, 2010. Panasonic Lumix GH1 at 95mm 1/5000s. ©Eva Seidenfaden, shown with permission.

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Sunlight reflected externally, and internally, from the large basal faces of plate crystal produce pillars. The crystals are unlikely, however, to be the perfect ones pictured at right. Large wobbly crystals somewaht intermediate between those and snowflakes are often responsible.