[meteorite-list] Question

[Dave Carothers]

Good day all.

I have perhaps a very dumb question that I haven't been able to find the
answer to.

When the Met Bul shows the classification of a meteorite, it sometimes uses
the notation X/Y or X-Y.  For example you may have a meteorite classified as
H4/5 or H4-5.  Are these two classifications the same or different.  If
different, how so?

Thanks,

Dave