Originally posted by Duncan
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Hey Duncan, i have done a few experiments with granite dust, ( or metal dust, as we call it ), straight from a quarry.
The parramagnetic strength vary's from quarry to quarry, i have tested samples from 4 quarries in my area, the difference in gauss, etc, is profound.
This dust is an incredible long life soil fertiliser.
My other interest in this dust is for a core material for motor coils and i will be trying some highly parramagnetic dust mixed with high temp epoxy, in my next build, just to see.
Regards Cornboy.
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