Mineral Notes: Arseonopyrite is a major ore of arsenic. It occurs in high-temperature veins with silver, copper and gold ores. It is also found in some pegmatites and contact metamorphic rocks. It is easily identified in the field by the fact that the mineral emits a distinct garlic smell after being fractured with a hammer. Sometimes, the mineral is found with a large amount of cobalt replacing some of the iron, in which case it is referred to as Danaite.
Description: A very rich specimen of solid Arsenopyrite. The front face is particulalry well covered by large platy crystals. The mineral has a very attractive white-grey colour and a strong metallic luster. Excellent condition.
