----- Original Message ----- From: Paul DeCampo <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, September 19, 2002 10:06 PM Subject: Paramagnetic Rock Dust / Viticulture
> Hello all, > > I am looking for a source of paramagnetic rock dust here in Otario, > Canada. Any ideas? Hi Paul You can self test all your locally available quarry dusts using the following method - it will tell you if any have paramagnetism high enough to be useful - there are also separate nutritional issues - some have very useful trace element availability - and I would recommend you do a pot test trial of any rock that looks promising - some of the highest paramagnetic tests I have heard of come from Canadian rock but I think from the East edge of the Rockies which would make freight prohibitive? If you want to do some testing yourself here's how 1. get a sample (or a couple of different ones) of paramagneteic rock dust of known cgs and keep for reference, I keep mine in a normal paper envelope. 2. now you need a small (1/2" diameter or smaller) but high quality - strong - magnet - your ordinary fridge magnet type is not good enough (look for the neodimium magnets they sell for taping on your body for aches and pains or something similar) - and suspend the magnet on a piece of cotton about a foot or so long. 3. the magnet will stick to your envelope of paramagnetic material and by moving the cotton away so that you have just enough tension on the cotton to equal the weight of the magnet you find the magnet comes away from the sample at a certain angle depending on the paramagnetic value or strength of the material tested. The reverse of this of course is that a diamagnetic material (lime for instance) should repel the magnet Its a fun thing - but a good enough system to tell if a rock source is worthy of serious testing. For instrument testing of paramagnetism I am sure you would find someone in acres magazine (Phil Wheeler would be one) Cheers Lloyd Charles
