As the water cools, ions precipitate out  as mineral crystals, including quartz crystals from silicon  and oxygen, feldspar from potassium, aluminum,  silicon, and oxygen, galena from lead and sulfur.
L'acqua poi si raffredda, gli ioni precipitano e si formano cristalli minerali, come cristalli di quarzo da silicio e ossigeno, feldspato da potassio, alluminio, silicio e ossigeno, galena da piombo e zolfo.