you use it in herblore to make antipoisons i think.
You can crush then with a pestle and mortar to get unicorn dust, which then can be used in herblore i think :)
Get a anti dragon sheld and go to dragons and figt them.
**RuneScape Members Only** You can make a basic Antipoison potion in RuneScape by using the herblore skill. You need level 5 herblore to do this. The ingredients are as follows: Clean Marrentill + Vial of Water = Marrentill Potion (Unf) + Ground Unicorn Horn (Unicorn Horn + Pestle and Mortar) = Antipoison (3)
* Bones * Unicorn Horn (members only) * Unicorn bone (during the quest Rag and Bone Man only) * Unicorn hide (during the quest Fur 'n' Seek only)
the unicorn's horn possesses all the magic that unicorn has; also, without the unicorn's horn, the unicorn would not be able to survive
You can murder 4000 elves with one jab of a unicorn horn.
poptropica doesn't include unicorn horns so there isn't a unicorn horn at all *yet*
"Uni" means one, and "Corn" means horn, so "Unicorn" means "one horn."
A Unicorn
The word unicorn comes from the Latin word "uni", meaning one, and "corna", meaning horn - the word "unicorn" means "one horn". Not to be confused with alicorn, which is often mistaken to be a winged unicorn. Alicorn is in fact the term for the substance a unicorn's horn is made out of.
You can make one by using clean marrentill on a vial of water and then adding ground unicorn horn, This requires level 5 Herblore to make.
A winged unicorn is a fictional horse with wings like Pegasus and the horn of a unicorn. This creature has no specific name, but in some literature and media, it has been referred to as an "alicorn", which is a historical word for the horn of a unicorn. Winged unicorns have been depicted in art.