[meteorite-list] Willamette cutting question

[Mr EMan]

Hello John

Circular diamond coring bits only came into use recently. The Willamette donation was in the early 1900's. I can only assume that the saw method of the time dictated the location of the cut: large heavy frames using a wire loop with abrasives hand fed into the grove.  It is not like one could easily rotate the mass easily. 

I am happy to see the use of core sample extraction more frequently in sampling. However, coring has a drawback in that it is very difficult to lubricate and can heat up the core changing some magnetic states.

Elton