Ключевые слова: abstract, aggregate, aggregation, amulet, atomic structure, barite, barium sulphate, baryte, barytes, closeup, composition, concentration, connate, crystallization, crystals, cube shaped, diffraction, dispersion, glazed, gold, gold cubes, grown together, hardness, inorganic, iron pyrite, iron sulfide, irregular, irregular shapes, irregular stripes, luminescence, lustre, metallic luster, milk white, mineral stones, mineralogy, minerals, morocco, opalescence, peru, polished stone, precious stone, pyrite, pyros, rhomb, rough texture, semiprecious, structure, surface, thermo luminescence, vitreous lustre,