For some people, it’s a choice based on cultural beliefs or economic opportunities provided by the volcano. Other times it’s less a choice than the only option.
Articles on Mineral deposits
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Implanted artificial heart valves need to be replaced because of mineral deposits. Recent research has discovered that the composition of these deposits differs between men and women.
Liquid minerals containing sulfur behave like a hot knife through butter – they’re so corrosive they can melt their way through solid rock.
