Ключевые слова: acid, active, aggressive, ash, asia, asian, brimstone, closeup, cluster, colorful, crater, crystal, danger, element, eruption, firespitting, fracture, fumarole, geology, geyser, indonesia, industry, java, light, manufacturing, mine, mined, mineral, mountain, natural, nature, ore, power, pure, rock, sample, seismic, shiny, smoke, stink, stone, sulfur, sulfuric, sulphur, volcanic, volcano, volcanology, yellow,