Ключевые слова: background, beautiful, black, blende, bright, brown, close, collection, colorful, crystal, crystalline, decorative, gemstone, geological, geology, isolated, little, macro, marmatite, material, mineral, mineralogy, natural, nature, object, ore, ornamental, pattern, pebble, piece, raw, rock, rough, sample, shiny, shooting, small, specimen, sphalerite, stone, structure, surface, texture, up, white, yellow, zinc,