LITHOGRAPHIC; LITHOGRAPHICAL a.
lithographic art; a lithographic picture. Lithographic limestone (Min.), a compact, fine-grained limestone, obtained largely from the Lias and Oölite, esp. of Bavaria, and extensively used in lithography. -- Lith`o*graph"ic*al*ly, adv.
PORPHYRY n.
A term used somewhat loosely to designate a rock consisting of a fine-grained base (usually feldspathic) through which crystals, as of feldspar or quartz, are disseminated. There are red, purple, and green varieties, which are highly esteemed as marbles. Porphyry shell (Zoöl.), a handsome marine gastropod shell (Oliva…
SHAGREEN n.
leather prepared in Russia and the East, from the skins of horses, asses, and camels, and grained so as to be covered with small round granulations. This characteristic surface is produced by pressing small seeds into the grain or hair side when moist, and afterward, when dry, scraping off the roughness left between th…