(other person) Nope. I talked to a farrier and she said that color doesn't seem to make any difference. Breed, however does.
there is not a "Purpose" for the white line in a horses hoof, it is much like a birth mark on us
a unicorn.. ] ==
Black horn is the dark pigmented hoof, whereas, a white horn is the light colored hoof. Where a horse has white socks, the hoof will be white also.
coronet band
Yes their hooves are much stronger then glass.