Ключевые слова: alternative medicine, birthstone, blue, brushed, closeup, crude, crystal, detail, energize, esoteric, gem, gemology, gemstone, geologic, geological, hard, heal, igneous, indigo, isolated, jewel, macro, metamorphic, mineral, natural, ore, oval, polished, precious, raw, rock, rough, royal blue, semiprecious, shape, sodalite, stone, white,