Ключевые слова: aggregate, asia, background, beautiful, calcite, chlorite, cluster, crystal, crystalline, dioxide, gem, gemmy, gemstone, geological, geology, glass, glassy, green, hydrothermal, included, inclusion, isolated, matrix, mine, mineral, mineralogical, mineralogy, natural, nature, nepal, ore, pattern, pegmatite, precious, quartz, rare, raw, rock, sample, science, silicate, silicon, slovakia, specimen, stone, switzerland, texture, transparent, treasure, white,