Yes, it is normal for horses’ hooves to chip from time-to-time. This can be caused by a variety of factors including the hardness and moisture content of the ground, how often the horse is ridden or exercised, and even genetics. However, if chipping or cracking becomes severe or frequent then this could indicate an underlying problem such as poor nutrition, laminitis (an inflammation in the foot), infectious disease, improper farrier care or shoeing techniques, etc. Therefore it's important to have your horse examined by a veterinarian so they can identify any potential issues before they become more serious.