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How abundant is arsenic in Earth’s crust?

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A labeled diagram of the periodic table entry for arsenic, showing its atomic number 33, symbol As, atomic weight 74.921595, electron configuration, and classification as an other nonmetal. Additional icons indicate arsenic is solid at room temperature, has a rhombohedral crystal structure, and weakly acidic oxides. — arsenic Properties of arsenic.

The abundance of arsenic in Earth’s crust is approximately five grams per ton. While it is widely distributed, it is rarely found in its native state; instead, it is most commonly found combined with other elements in more than 150 different minerals, such as arsenopyrite.1