Ключевые слова: amethyst, aura, background, black, chakra, clear, collection, compound, crystal, crystalline, decoration, dioxide, druze, energy, esoteric, gem, gemmy, gemology, gemstone, geological, geology, glass, healing, hexagonal, hydrothermal, isolated, jewelry, matrix, mine, mineral, mineralogy, morion, mountain, natural, ore, precious, quartz, rock, rough, sample, semiprecious, shiny, silicate, smokey, smoky, specimen, stone, treasure, up, valuable,