This is the former Agrium Kapuskasing phosphate mine ore source. It is a carbonatite phosphate rock fertilizer with 25% P2O5 and no impurities such as cadmium, thorium etc. Pricing starts at $100 US per tonne for a 2 mm size. The material is marketed as VolcanoPhos phosphate rock fertilizer. Please download the Agricultural Canada Study on this exact ore source (Agrium Kapuskasing Mine indicating up to 70% available phosphate if composted) as well as our chemical analysis. We will custom mill orders as small as 15 microns for those requiring spray applications.