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Cutting slices

Started by lintonius, 12/18/2008 12:41AM
Posted 12/18/2008 12:41AM | Edited 12/18/2008 12:41AM Opening Post
Have any of you guys had any experience cutting meteorite slices?
I have a few specimens that I would like to try slicing, but I don't want to ruin anything.
I guess I could start out on a cheap NWA chondrite, and work my way up to pallasites.
I have a couple Brenham chunks I'd like to slice.
I have a band saw, portaband and diamond blade grinder,
and have access to an industrial coolant-fed metal saw.
Not sure what to use though. I'm thinking the diamond blade
for stony chondrites, and perhaps a band saw for the irons.
Anyone?
Linton
Posted 12/19/2008 10:03PM #1
Linton:
Hello. I am far from an expert at cutting meteorites, however, about 10 years ago I had a vast amount of Sikhote Alin and Brahin. I used a thin diamond blade and experienced a definite learning curve. One thing I strongly urge is to use some type of air filter or respirator as well as eye protection. I used water as a coolant and for the Sikhote Alin this was adequate, but for Brahin, the pieces I cut looked good for a few days, but then began to rust. I eventually stopped cutting because I felt that the equipment I was using was not of high enough quality. It's certainly worth a try but I would probably practice on some terrestrial rocks first. I wish I could give you more helpful suggestions, but the most I can really do is urge caution. I believe there are some youtube videos on cutting.
Posted 12/20/2008 01:05AM #2
You may check with the Geology department of a good University. At Virginia Tech (late 60s early 70s) our lab was equiped to cut rocks for thin sections and other analytical methods. The initial cuts were made with an oil-bath diamond saw. Various grit laps were also available for polishing as was a chuck device for preparing very thin slices using glass slides and a vacuum chuck.

Jud

I Yam What I Yam!