Elbaite, on Quartz, nicknamed "Rabbit Ears". Amazing natural crystal formation ~ Houston Museum of Natural Science, Cullen Hall of Gems and Minerals (photo credit: Houston Convention and Visitor's Bureau)
Peridot - My birthstone. An amazing fact about Peridot is that it is also a gemstone from outer space! It has been found in meteors that have fallen to earth from deep space. It has also been found (in its basic form called olivine) on Mars and the Moon!