GRAPHITE n.
Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead. Graphite battery (Elec.), a voltaic…
GREEN a.
- Green diallage. (Min.) (a) Diallage, a variety of pyroxene. (b) Smaragdite. -- Green dragon (Bot.), a North American herbaceous plant (Arisæma Dracontium), resembling the Indian turnip; -- called also dragon root. -- Green earth (Min.), a variety of glauconite, found in cavities in amygdaloid and other eruptive roc…