[meteorite-list] Canyon Diablo Spheroid Size

[Dave Carothers]

Good evening list members,

I have specimens of the famous Canyon Diablo spheroids with a copy of the
American Meteorite Laboratory label.  I don't have the capability to measure
the spheroids, but they are of the size that would qualify them as a "Bessey
Speck".  The label specifies "Size 24".

I know that the spheroids were typically from 0.01mm to 2 mm in size.  Does
anyone know the scale Nininger used to produce the "Size 24"?

Thanks,

Dave