depth hoar large (one to several millimeters in diameter), cohesionless, coarse, faceted snow crystals which result from the presence of strong temperature gradients 
(cohesionless, coarse; faceted; snow crystals which result from the presence of strong temperature gradients) (snow crystals; result; from the presence of strong temperature gradients)
cohesionless, coarse snow crystals
faceted result
snow crystals which result from the presence of strong temperature gradients
from the presence of strong temperature gradients