Assertion: hoar frost | /r/MadeOf | direct deposition
Facets:
value: from water vapour
type: CAUSE
Source sentences:
text: Soft rime is similar in appearance to hoar frost; but whereas rime is formed by vapour first condensing to liquid droplets (of fog, mist or cloud) and then attaching to a surface, hoar frost is formed by direct deposition from water vapour to solid ice.