sentence: Some arsenic minerals have a metal and sulfur along with arsenic.
sentences_before: Arsenic is found sometimes as an element in the ground, but is normally found in minerals.
sentences_after: Arsenopyrite is iron arsenic sulfide. It is the same as pyrite with arsenic added. Other arsenic minerals have a metal and arsenic. Erythrite, a cobalt arsenide mineral, is an example. Other arsenic minerals are simple.
concept_name: arsenic mineral
headings: Arsenic Occurrence
categories: Semimetals Chemical elements