Lepidocrocite color

Y-FeOOH lepidocrocite 12022-37-6 boehmite color changes with increasing particle size from yellow to orange... 

Fig. 3-6. Munsell colors of hematite, ferrihydrite, lepidocrocite, and goethite samples. (Figure provided by Munsell, a division of GretagMacbeth, LLC.)...

Once the syntheses are underway, the lecture can be presented. The graphs for this section as well as the list of oxides in the introduction should be available for presentation as slides or overheads. It is worth using colors for the different Fe oxides and these should be mnemonic and of course, the same on all graphs, namely, black for magnetite, red for hematite, brown for ferrihydrite, yellow for goethite and orange for lepidocrocite (Schwertmann, 1993). 

FeOOH Lepidocrocite eep Uncommon except in wet soils. Color similar to goethite. 

Lepidocrocite (yFeOOH) is less frequent than goethite or hematite and it occurs in poorly drained soils where it forms from oxidation of Fe hydroxy compounds (Schwertmann and Taylor, 1977). It displays an orange color (Schwertmann, 1988). 

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