GLASS n.
nchoidal fracture, and made by fusing together sand or silica with lime, potash, soda, or lead oxide. It is used for window panes and mirrors, for articles of table and culinary use, for lenses, and various articles of ornament.
GRAPHITE n.
ster, 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 battery consisting of zinc and carbon in sulphuric acid, or other exciting liquid.…
GREEN a.
n laver (Bot.), an edible seaweed (Ulva latissima); -- called also green sloke. -- Green lead ore (Min.), pyromorphite. -- Green linnet (Zoöl.), the greenfinch. -- Green looper (Zoöl.), the cankerworm. -- Green marble (Min.), serpentine. -- Green mineral, a carbonate of copper, used as a pigment. See Greengill. -…