Ключевые слова: background, block, blue, charoite, charoitite, collection, crystal, decorative, gem, gemmological, gemmology, gemological, gemology, gemstone, geological, geology, isolated, jewelry, little, macro, material, mineral, mineralogy, natural, nature, object, ornamental, pebble, piece, pink, polished, purple, rock, sample, semiprecious, slab, small, specimen, stone, structure, surface, texture, translucent, tumbled, up, violet, white,