Hoar Frost versus Rime Ice
Ever heard of hoar frost? It is a type of frost with a feathery appearance. Hoar frost forms when the water vapour in the air condenses onto a solid surface below freezing. It usually forms under a clear cold night. The word “hoar” comes from old English and refers to the old-age appearance of frost - how the ice crystals form makes it look like white hair or a beard. It is delicate and can easily be blown away.
