The nickel sulfides within the regolith have been oxidised into a complex series of weathering fronts including a rare expression of a carbonate front which has resulted in a host of unusual nickel carbonate, arsenate and silicate minerals such as gaspeite, atacamite, annabergite, carrboydite, glaucospaerite, hydrohonessite, kambaldaite, n�pouite, nullaginite, pecoraite, olivenite, otwayite, reevesite, retgersite, takovite and of course widgiemoolthalite.
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