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.
One of tourmalineâs most sought-after and generally available colors is the pink/red variety known in the trade as rubellite. Tourmaline's hue and depth of color can approach the range of ruby and pink sapphire. This 8.16-carat cushion-cut rubellite and 10.78-carat emerald-cut pink tourmaline are superb examples.