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Industrial grade pure iron filing, clean and dry. It can be used in metallurgical industry.
It is packed in 12 oz bottle and to be used in experiments with magnetism. The bottle is sprinkler type plastic bottle. Lots of fun!
There are 2 review(s) for Iron Filings for Magnetism Education Iron Powder
by Professor Ken Pence – 18th Feb 2013
The film scratches with use but it is excellent for showing the magnetic fields of a Halbach array or any single magnet.
by haggis9997 – 11th Oct 2012
I know it reads various sizes available, but I wasn't sure how to specify at the on line check out what size I wanted. For the $3.49 you will be getting a piece about the size of an oversized business card just so you know. Otherwise fun stuff!