Distinct_halos_and_sunspin_offer_incredible_views_during_clear_afternoons
When sunlight encounters these horizontally oriented crystals, it undergoes refraction, effectively bending the light rays. The specific angle of refraction is determined by the crystal's shape and the angle at which the light strikes it. This process concentrates the light along a vertical axis, creating the pillar-like appearance characteristic of a sunspin. Minor variations in the orientation of individual crystals contribute to the shimmering or rotating quality, as the light pillar fluctuates subtly.
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