Leaching of Fluoride from Biotite Mica in Soil: Implications for Fluoride in Shallow Groundwater
Figure 1
Variation of available (a) Fā, (b) K+, and (c) Fe2+ in treated mica according to weathering stage, and leaching rate of (d) Fā, (e) K+, and (f) Fe2+ from fresh biotite.