A Fournier- Forand particle phase function of 0.025 was used for the mineral simulations (Fournier and Forand 1994; Twar- dowski et al. 2001; Sullivan et al. 2005).
A Fournier- Forand particle phase function of 0.025 was used for the mineral simulations (Fournier and Forand 1994; Twar- dowski et al. 2001; Sullivan et al. 2005).