There are two different crystals that have been given the name 'Desert Rose'. One is a round cluster of petal-shaped Barite crystals that are stained red by the presence of iron impurities. The other is a form of Fulgurite, which is not technically a stone but rather a form of glass that is created when lightning strikes sand. The heat of the lightning strike liquidizes the sand into silica glass, which then cools and solidifies into hollow tubes (Fulgurites) or rounded flowers (Desert Rose).
Because Desert Rose is created with the awesome, focused power of a lightning strike it can be used magically to bring vast, fiery energies to any spell you are working. Desert Rose is a powerful crystal, but it should always be used with caution. The power than it holds can be overwhelming and if not used with care it can have disastrous or unforeseen consequences. A good analogy is using a proverbial sledgehammer to crack a nut.
Desert Rose can be used to breaks down barriers and melt away the fear and anxiety that prevents you from moving forward in life. Meditation with this crystal is said to help you get in touch with your own inner Fire, helping you to increase confidence, courage and belief in your abilities. It is a very powerful stone when used to create change in your life, especially if you want to escape a situation in which you feel trapped or immobilized, but as mentioned before you proceed with caution when working with Desert Rose. Be sure that you really want what you are asking for, because the power of this stone is not subtle and there is a risk that your life may be transformed suddenly, violently or in ways that you were not expecting.