The spice had glowed radiant blue in the dim silver light. Some glowed like pearls, some glittered diamond-sharp. The missile glowed bright white as it flew. A condensation cloud in diameter quickly enveloped the fireball, which glowed within the cloud. Affected bones glowed a greenish-white colour in the dark. When Penn examined it under ultraviolet light, the colors glowed suspiciously. The spider shot pyro from its legs and had eyes that glowed. Neon glowed a brilliant red when used in Geissler tubes. These usually had directly heated thoriated filament cathodes that glowed like light bulbs. There was also some concern about the luminescent dial that glowed green in the dark. Sting glowed blue whenever orcs were nearby, as in Moria. One day he discovered a dark cave that glowed inside from a green substance. Light bulbs within of the lab glowed even when turned off. The bristles glowed in the dark when wet. When upset to the point of violence his eyes glowed amber.