Ключевые слова: abstract, art, background, banded, black, closeup, collection, colored, colorful, colors, crude, decorative, exhibit, firestone, flint, frame, gem, gemology, gemstone, geological, geology, isolated, jasper, landscaped, marble, millstone, mineral, mineralogy, mining, natural, nature, pebble, pictorial, piece, raw, red, ribbon, rock, rough, science, semiprecious, slab, specimen, stone, strip, stripe, surface, texture, tracery, vivid, wild,