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How is arsenic found in its native state?

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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.

Arsenic is found in its native state in small amounts, typically with a purity ranging from 90 to 98 percent. In this form, it is generally associated with other metals such as antimony and silver.1

While it can occur as a native element, arsenic is more commonly found combined with other elements in over 150 different minerals, including sulfides, arsenides, sulfoarsenides, and arsenites.1