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.
Tertairy colors consiste of red-orange, yellow-orange, yellow-green, blue-green, blue-violet, and red-violet. Tertiary colors are formed by mixing primary and secondary colors, resulting in the two-word names.