Safflorite

Safflorite is a rare cobalt iron arsenide mineral with formula: (Co,Fe)As2. Pure safflorite would be just CoAs2, but iron is virtually always present. Safflorite is a member of the three-way substitution series of arsenides known as the loellingite or loellingite group. More than fifty percent iron makes the mineral loellingite whereas more than f...
Found on http://en.wikipedia.org/wiki/Safflorite

safflorite

(from the article `cobalt processing`) Cobalt arsenides, such as smaltite, safflorite, and skutterudite, with the sulfoarsenide cobaltite and the arsenate erythrite, are mined in Morocco ...
Found on http://www.britannica.com/eb/a-z/s/5
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