Ключевые слова: background, beautiful, blue, close, collection, decorative, gem, gemmological, gemmology, gemological, gemology, gems, gemstone, geological, geology, green, iridescent, isolated, labrador, labradorite, little, macro, material, mineral, natural, nature, object, ornamental, pebble, piece, polished, precious, rainbow, raw, rock, sample, semiprecious, shooting, slab, specimen, stone, stones, structure, surface, texture, textured, up, white, yellow,