with up to 8 wt% As, forming a series towards johnbaumite.
Quality of samples:
not specified / average specimens
Confirmation
Validity:
Believed Valid
References
References:
David Singer: Highly oxidized rocks from the San Gorgonio Pass, California; Petrologic and thermodynamic calculations. (Senior honors thesis, Department of Geological Sciences, University of Michigan; advisors: Eric Essene and Casey Donohue).