Yes, mercury occurs naturally in the Earth’s crust. We can mine for mercury, but it is also found in deposits of other minerals like gold, silver and zinc.
Mercury is a naturally occurring substance, which means there are several specific natural phenomena that can produce mercury. In fact, “approximately one-third of emitted mercury comes from natural sources such as the ocean, volcanoes and forest fires. Another third comes from activities like erosion due to land clearing and the burning of timberland or crops.”
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