Well, My understanding is that normal glass is at about 5.5 and steel around 6.5 on the Moh scale.
My own experience is that a chondrule rich meteorite will dull a steel file fairly quicky and I'd imagine that despite chondrules being supposed to be glass, they are much harder than terrestrial glass and it is the silicates which allow meteorite friability. I have not heard of a chondrule study but I don't think they'd be less than 6.0 on the Moh scale. Rob McC __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
