Topaz is one of the hardest naturally occurring minerals. Due to this quality, along with its unique transparency and variety of colors, has allowed this gem to flourish in the gem world. its natural state, topaz is a golden brown to a yellow. Other colored topaz stones can occur naturally, however, they are very rare. Most topaz which exist in other colors outside the red, orange, yellow, and brown spectrum have received their color through various treatment processes. Although topaz is extraordinarily hard, it must also be treated with great care due to its weak atomic bonding. This weakness gives topaz a tendency to fracture along its atomic plane if a strong enough force is applied. Topaz is one of the twelve breastplate stones of the High Priest referred to in the Book of Exodus. The breastplate stones are considered sacred to twelve mighty angels who guard the gates to Paradise. It is also said to encourage self-realization and confidence and impart strength to quiet wild emotions.