What is a frosticle?

A frosticle is a term used to describe a type of ice formation that resembles icicles but is formed under specific conditions, typically involving freezing temperatures and moisture in the air. Unlike traditional icicles that form from dripping water, frosticles can form directly from water vapor in the air as it freezes, often creating delicate, crystalline structures. They are commonly seen in very cold climates where high humidity levels are present.