[meteorite-list] One more asteroid type which might shake an old meteorite axom: G-type

[MEM]

<http://en.wikipedia.org/wiki/G-type_asteroid>  

This includes 1 Ceres and the significance is that the spectral absorption 
suggests a composition including clays and phylosilicates--aka "micas".   These 
mineral classes require free water somewhere in their formation, by the way .  
So the old axiom that "mica" is never found in meteorites might need this 
potential exception to be taken into consideration next time a candidate 
specimen is summarily discarded owing to mica cointent.

Elton