Since 30 to 40 CPS is considered to be the normal range for Beta brainwave signals (those associated with the wakeful state), it is apparent that the Monroe Institute is convinced that the same heightened state of brainwave frequency output which promotes altered states of consciousness is also an important consideration in assisting in achievement of out-of-body states.
In 1852, fluorite gave its name to the phenomenon of fluorescence, which is prominent in fluorites from certain locations, due to certain impurities in the crystal.
Fluorite (Wikipedia) Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon.