You may also find information of interest via sites listed on the LINKS page.
PUBLICATION : R.A.K. Szmidt, L. Baird and F.E. Szmidt (2016), Use of Rockdust Amended Compost in Land Restoration. Acta Horticultrae 1146 (183 - 190).
You can download this via the following link: http://www.actahort.org/books/1146/1146_25.htm
Charges may apply except for ISHS members.
Campbell, Nicola S. (2009) The use of rockdust and composted materials as soil fertility amendments. PhD thesis. University of Glasgow.