W89
Isn't stonemeal pretty much the only rock dust you have available? I've read a few articles in newspapers from Scotland, Ireland and England on this subject. Seems as though there's more of a 'national interest' than in the states.
The local store sold over 200 tons last year of the Canadian glacial rock dust - just that rock dust. But you would have a hard time finding it in Los Angeles perhaps. Certainly wouldn't find it in New York City
CC
I looked around the local garden centers couldnt find anything I got this from a local DIY shop.. http://www.diy.com/nav/garden/garde...ompost/Verve-Volcanic-Rock-Dust-10Kg-11907558
Basalt based crystalline mineral compounds which include feldspar, pyroxene, hornblende, chlorite and magnetite.
It's approved by the "Organic farmers & Growers" "soil Association" and SEER "sustainable Ecological earth regeneration"
some info from WIKI about the different rock dusts:
http://en.wikipedia.org/wiki/Pyroxene
http://en.wikipedia.org/wiki/Feldspar
http://en.wikipedia.org/wiki/Hornblende
http://en.wikipedia.org/wiki/Chlorite
http://en.wikipedia.org/wiki/Magnetite
If I could have sourced some local rock dusts I would have done that but dont know of any quarries close by and for the price and convenience I got that