Tom asked: > Hello List, I am confused! Please help me out on this! An L is low and > an H is high, right? If a meteorite is chocked full of visible metal can > it be an L, or is it an H ?
Jeff kindly responded: > Fresh H chondrites have 9-13 volume% metal plus sulfide, L chondrites have > 6-7 vol% metal plus sulfide. But notice that a perfectly respectable H > chondrite with 9% only has slightly more metal + sulfide than a perfectly > respectable L with 7%. It's not always easy to distinguish on this > basis. The quality of the surface can also affect what you see. Tom, the presence of a lot of visible metal can be a deceiving criterion. Lots of L or LL chondrites have an appreciable amount of visible nickel- iron specks or flakes, others are very poor in visible metal as some of this total iron may be "locked" in the silicates (olivine, pyroxene, etc.) Best wishes, Bernd ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
