Nuclear electromagnetic pulse (NEMP), as a result of a nuclear explosion. A variant of this is the high altitude nuclear EMP (HEMP), which produces a secondary pulse due to particle interactions with the Earth's atmosphere and magnetic field. Non-nuclear electromagnetic pulse (NNEMP) weapons. Lightning
Central American cultures would sometimes hold jadeite against their sides to help cure ailments, which is why the Spanish called jadeite piedra de ijada, meaning stone for the pain in the side. On the other side of the world, the Chinese called jade yu, meaning heavenly or imperial and has been found in the tombs of some Shang dynasty kings and other important figures.
The term jade is used for two different minerals, jadeite and nephrite. Only jadeite has value as a gem material in and of itself. Color. For jadeite, the intensity of the green color, combined with a high degree of translucency are the key factors in judging value.