“A potash solution for Brazil’s Growing Potash Problem”

Verde’s Potash bearing rock is distributed over an area approximately 100km x 6km at 20m to 80m thick. The rock is a green slate, formed by metamorphism of sedimentary rocks composed of quartz, feldspar, muscovite, and microcline. Verde’s potash rock is a lithological unit within the “Bambui Group” of the “Serra da Saudade” formation; neoproterozoic in age. The predominant potash minerals are muscovite and microcline.

Chemical Composition (%)
K2O 5.5 - 12.0
SiO2 56.0 – 68.0
Al2O3 13.0 – 18.5
Fe2O3 5.0 - 7.0
MgO 2.0 – 3.5
MnO 0.01 – 0.10
P2O5 0.05 – 0.15

Source: Surface Samples

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