A pulsar (short for pulsating radio star) is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation.
Tourmaline is the most colorful of all gemstones. It occurs in all colors, but pink, red, green, blue and multicolored are its most well-known gem colors. Scientifically, tourmaline is not a single mineral, but a group of minerals related in their physical and chemical properties.
A gemstone found in all the colors of the rainbow, tourmaline also occurs as purple stones. These purple crystals come from the species of tourmaline called elbaite, including the highly valuable Paraiba tourmaline.