Last year, in a Nature study, De Sanctis» team reported that the surface of Ceres contains
ammoniated phyllosilicates, or clays containing ammonia.
«Our measurements indicate widespread
ammoniated phyllosilicates across the surface, but no detectable water ice.
The best match for the spectra proved to be something De Sanctis and her team hadn't even been looking for — clay - like minerals called
ammoniated phyllosilicates.