White (foals are golden and silver) Pure, bright white, a single
horn on its forehead. |Ministry of Magic Classification|| -
"Only one who has nothing to lose, and everything to gain, would
commit such a crime. The blood of a unicorn will keep you alive,
even if you are an inch from death, but at a terrible price. You
have slain something pure and defenceless to save yourself and
you will have but a half-life, a cursed life, from the moment
the blood touches your lips." - —Firenze to Harry Potter[src]
The unicorn is a white, equine creature with a single horn on
its forehead. Physiology and life cycle Unicorn foals are pure
gold, and turn silver when they are about two years old. They
grow their horn at around four. At about seven years old, they
are fully grown and turn a shade of white that is so bright it
makes snow look grey in comparison. Their hooves are golden, and
their blood is silver-blue in colour and shines under the
moonlight. Unicorns inhabit the forests of Europe including the
Forbidden Forest