I'm a regular user of Basalt powder and other rocks or rock powders. This tread gives a nice back up to my reasons for doing this. Love to hear about other experiences.
Cool article and thanks for sharing Erwin. I like rock powders myself but haven't yet used basalt. I need to find some locally, as shipping on 50lb sacks can be a real killer.
"Study books and observe nature; if they do not agree, throw away the books." ~ William A. Albrecht
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